400008672

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^2$

素因数の和:163

約数の個数: 288

約数和(自身を含む): 1427731200

約数和(自身を除く): 1027722528

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 32, 36, 38, 42, 48, 54, 56, 57, 59, 63, 72, 76, 84, 96, 108, 112, 114, 118, 126, 133, 144, 152, 168, 171, 177, 189, 216, 224, 228, 236, 252, 266, 288, 304, 336, 342, 354, 378, 399, 413, 432, 456, 472, 504, 513, 531, 532, 608, 672, 684, 708, 756, 798, 826, 864, 912, 944, 1008, 1026, 1062, 1064, 1121, 1197, 1239, 1368, 1416, 1512, 1593, 1596, 1652, 1824, 1888, 2016, 2052, 2124, 2128, 2242, 2394, 2478, 2736, 2832, 3024, 3186, 3192, 3304, 3363, 3481, 3591, 3717, 4104, 4248, 4256, 4484, 4788, 4956, 5472, 5664, 6048, 6372, 6384, 6608, 6726, 6962, 7182, 7434, 7847, 8208, 8496, 8968, 9576, 9912, 10089, 10443, 11151, 12744, 12768, 13216, 13452, 13924, 14364, 14868, 15694, 16416, 16992, 17936, 19152, 19824, 20178, 20886, 22302, 23541, 24367, 25488, 26904, 27848, 28728, 29736, 30267, 31329, 31388, 35872, 38304, 39648, 40356, 41772, 44604, 47082, 48734, 50976, 53808, 55696, 57456, 59472, 60534, 62658, 62776, 66139, 70623, 73101, 80712, 83544, 89208, 93987, 94164, 97468, 107616, 111392, 114912, 118944, 121068, 125316, 125552, 132278, 141246, 146202, 161424, 167088, 178416, 187974, 188328, 194936, 198417, 211869, 219303, 242136, 250632, 251104, 264556, 282492, 292404, 322848, 334176, 356832, 375948, 376656, 389872, 396834, 423738, 438606, 462973, 484272, 501264, 529112, 564984, 584808, 595251, 657909, 751896, 753312, 779744, 793668, 847476, 877212, 925946, 968544, 1002528, 1058224, 1129968, 1169616, 1190502, 1315818, 1388919, 1503792, 1587336, 1694952, 1754424, 1785753, 1851892, 2116448, 2259936, 2339232, 2381004, 2631636, 2777838, 3007584, 3174672, 3389904, 3508848, 3571506, 3703784, 4166757, 4762008, 5263272, 5555676, 6349344, 6779808, 7017696, 7143012, 7407568, 8333514, 9524016, 10526544, 11111352, 12500271, 14286024, 14815136, 16667028, 19048032, 21053088, 22222704, 25000542, 28572048, 33334056, 44445408, 50001084, 57144096, 66668112, 100002168, 133336224, 200004336, 400008672]

約数ペア:

[(1, 400008672), (2, 200004336), (3, 133336224), (4, 100002168), (6, 66668112), (7, 57144096), (8, 50001084), (9, 44445408), (12, 33334056), (14, 28572048), (16, 25000542), (18, 22222704), (19, 21053088), (21, 19048032), (24, 16667028), (27, 14815136), (28, 14286024), (32, 12500271), (36, 11111352), (38, 10526544), (42, 9524016), (48, 8333514), (54, 7407568), (56, 7143012), (57, 7017696), (59, 6779808), (63, 6349344), (72, 5555676), (76, 5263272), (84, 4762008), (96, 4166757), (108, 3703784), (112, 3571506), (114, 3508848), (118, 3389904), (126, 3174672), (133, 3007584), (144, 2777838), (152, 2631636), (168, 2381004), (171, 2339232), (177, 2259936), (189, 2116448), (216, 1851892), (224, 1785753), (228, 1754424), (236, 1694952), (252, 1587336), (266, 1503792), (288, 1388919), (304, 1315818), (336, 1190502), (342, 1169616), (354, 1129968), (378, 1058224), (399, 1002528), (413, 968544), (432, 925946), (456, 877212), (472, 847476), (504, 793668), (513, 779744), (531, 753312), (532, 751896), (608, 657909), (672, 595251), (684, 584808), (708, 564984), (756, 529112), (798, 501264), (826, 484272), (864, 462973), (912, 438606), (944, 423738), (1008, 396834), (1026, 389872), (1062, 376656), (1064, 375948), (1121, 356832), (1197, 334176), (1239, 322848), (1368, 292404), (1416, 282492), (1512, 264556), (1593, 251104), (1596, 250632), (1652, 242136), (1824, 219303), (1888, 211869), (2016, 198417), (2052, 194936), (2124, 188328), (2128, 187974), (2242, 178416), (2394, 167088), (2478, 161424), (2736, 146202), (2832, 141246), (3024, 132278), (3186, 125552), (3192, 125316), (3304, 121068), (3363, 118944), (3481, 114912), (3591, 111392), (3717, 107616), (4104, 97468), (4248, 94164), (4256, 93987), (4484, 89208), (4788, 83544), (4956, 80712), (5472, 73101), (5664, 70623), (6048, 66139), (6372, 62776), (6384, 62658), (6608, 60534), (6726, 59472), (6962, 57456), (7182, 55696), (7434, 53808), (7847, 50976), (8208, 48734), (8496, 47082), (8968, 44604), (9576, 41772), (9912, 40356), (10089, 39648), (10443, 38304), (11151, 35872), (12744, 31388), (12768, 31329), (13216, 30267), (13452, 29736), (13924, 28728), (14364, 27848), (14868, 26904), (15694, 25488), (16416, 24367), (16992, 23541), (17936, 22302), (19152, 20886), (19824, 20178)]