19908504

素因数分解:

$2^3\times 3^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:65

約数の個数: 288

約数和(自身を含む): 74692800

約数和(自身を除く): 54784296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 19, 21, 22, 24, 27, 28, 33, 36, 38, 42, 44, 49, 54, 56, 57, 63, 66, 72, 76, 77, 81, 84, 88, 98, 99, 108, 114, 126, 132, 133, 147, 152, 154, 162, 168, 171, 189, 196, 198, 209, 216, 228, 231, 243, 252, 264, 266, 294, 297, 308, 324, 342, 378, 392, 396, 399, 418, 441, 456, 462, 486, 504, 513, 532, 539, 567, 588, 594, 616, 627, 648, 684, 693, 756, 792, 798, 836, 882, 891, 924, 931, 972, 1026, 1064, 1078, 1134, 1176, 1188, 1197, 1254, 1323, 1368, 1386, 1463, 1512, 1539, 1596, 1617, 1672, 1701, 1764, 1782, 1848, 1862, 1881, 1944, 2052, 2079, 2156, 2268, 2376, 2394, 2508, 2646, 2673, 2772, 2793, 2926, 3078, 3192, 3234, 3402, 3528, 3564, 3591, 3724, 3762, 3969, 4104, 4158, 4312, 4389, 4536, 4617, 4788, 4851, 5016, 5292, 5346, 5544, 5586, 5643, 5852, 6156, 6237, 6468, 6804, 7128, 7182, 7448, 7524, 7938, 8316, 8379, 8778, 9234, 9576, 9702, 10241, 10584, 10692, 10773, 11172, 11286, 11704, 11907, 12312, 12474, 12936, 13167, 13608, 14364, 14553, 15048, 15876, 16632, 16758, 16929, 17556, 18468, 18711, 19404, 20482, 21384, 21546, 22344, 22572, 23814, 24948, 25137, 26334, 28728, 29106, 30723, 31752, 32319, 33516, 33858, 35112, 36936, 37422, 38808, 39501, 40964, 43092, 43659, 45144, 47628, 49896, 50274, 50787, 52668, 58212, 61446, 64638, 67032, 67716, 74844, 75411, 79002, 81928, 86184, 87318, 92169, 95256, 100548, 101574, 105336, 116424, 118503, 122892, 129276, 130977, 135432, 149688, 150822, 158004, 174636, 184338, 201096, 203148, 226233, 237006, 245784, 258552, 261954, 276507, 301644, 316008, 349272, 355509, 368676, 406296, 452466, 474012, 523908, 553014, 603288, 711018, 737352, 829521, 904932, 948024, 1047816, 1106028, 1422036, 1659042, 1809864, 2212056, 2488563, 2844072, 3318084, 4977126, 6636168, 9954252, 19908504]

約数ペア:

[(1, 19908504), (2, 9954252), (3, 6636168), (4, 4977126), (6, 3318084), (7, 2844072), (8, 2488563), (9, 2212056), (11, 1809864), (12, 1659042), (14, 1422036), (18, 1106028), (19, 1047816), (21, 948024), (22, 904932), (24, 829521), (27, 737352), (28, 711018), (33, 603288), (36, 553014), (38, 523908), (42, 474012), (44, 452466), (49, 406296), (54, 368676), (56, 355509), (57, 349272), (63, 316008), (66, 301644), (72, 276507), (76, 261954), (77, 258552), (81, 245784), (84, 237006), (88, 226233), (98, 203148), (99, 201096), (108, 184338), (114, 174636), (126, 158004), (132, 150822), (133, 149688), (147, 135432), (152, 130977), (154, 129276), (162, 122892), (168, 118503), (171, 116424), (189, 105336), (196, 101574), (198, 100548), (209, 95256), (216, 92169), (228, 87318), (231, 86184), (243, 81928), (252, 79002), (264, 75411), (266, 74844), (294, 67716), (297, 67032), (308, 64638), (324, 61446), (342, 58212), (378, 52668), (392, 50787), (396, 50274), (399, 49896), (418, 47628), (441, 45144), (456, 43659), (462, 43092), (486, 40964), (504, 39501), (513, 38808), (532, 37422), (539, 36936), (567, 35112), (588, 33858), (594, 33516), (616, 32319), (627, 31752), (648, 30723), (684, 29106), (693, 28728), (756, 26334), (792, 25137), (798, 24948), (836, 23814), (882, 22572), (891, 22344), (924, 21546), (931, 21384), (972, 20482), (1026, 19404), (1064, 18711), (1078, 18468), (1134, 17556), (1176, 16929), (1188, 16758), (1197, 16632), (1254, 15876), (1323, 15048), (1368, 14553), (1386, 14364), (1463, 13608), (1512, 13167), (1539, 12936), (1596, 12474), (1617, 12312), (1672, 11907), (1701, 11704), (1764, 11286), (1782, 11172), (1848, 10773), (1862, 10692), (1881, 10584), (1944, 10241), (2052, 9702), (2079, 9576), (2156, 9234), (2268, 8778), (2376, 8379), (2394, 8316), (2508, 7938), (2646, 7524), (2673, 7448), (2772, 7182), (2793, 7128), (2926, 6804), (3078, 6468), (3192, 6237), (3234, 6156), (3402, 5852), (3528, 5643), (3564, 5586), (3591, 5544), (3724, 5346), (3762, 5292), (3969, 5016), (4104, 4851), (4158, 4788), (4312, 4617), (4389, 4536)]