638822028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:392

約数の個数: 144

約数和(自身を含む): 1733961600

約数和(自身を除く): 1095139572

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 59, 76, 78, 114, 118, 156, 169, 177, 228, 236, 247, 281, 338, 354, 494, 507, 562, 676, 708, 741, 767, 843, 988, 1014, 1121, 1124, 1482, 1534, 1686, 2028, 2242, 2301, 2964, 3068, 3211, 3363, 3372, 3653, 4484, 4602, 5339, 6422, 6726, 7306, 9204, 9633, 9971, 10678, 10959, 12844, 13452, 14573, 14612, 16017, 16579, 19266, 19942, 21356, 21918, 29146, 29913, 32034, 33158, 38532, 39884, 43719, 43836, 47489, 49737, 58292, 59826, 64068, 66316, 69407, 87438, 94978, 99474, 119652, 138814, 142467, 174876, 189449, 189956, 198948, 208221, 215527, 277628, 284934, 315001, 378898, 416442, 431054, 568347, 569868, 630002, 646581, 757796, 832884, 862108, 902291, 945003, 1136694, 1260004, 1293162, 1804582, 1890006, 2273388, 2586324, 2706873, 2801851, 3609164, 3780012, 4095013, 5413746, 5603702, 8190026, 8405553, 10827492, 11207404, 12285039, 16380052, 16811106, 24570078, 33622212, 49140156, 53235169, 106470338, 159705507, 212940676, 319411014, 638822028]

約数ペア:

[(1, 638822028), (2, 319411014), (3, 212940676), (4, 159705507), (6, 106470338), (12, 53235169), (13, 49140156), (19, 33622212), (26, 24570078), (38, 16811106), (39, 16380052), (52, 12285039), (57, 11207404), (59, 10827492), (76, 8405553), (78, 8190026), (114, 5603702), (118, 5413746), (156, 4095013), (169, 3780012), (177, 3609164), (228, 2801851), (236, 2706873), (247, 2586324), (281, 2273388), (338, 1890006), (354, 1804582), (494, 1293162), (507, 1260004), (562, 1136694), (676, 945003), (708, 902291), (741, 862108), (767, 832884), (843, 757796), (988, 646581), (1014, 630002), (1121, 569868), (1124, 568347), (1482, 431054), (1534, 416442), (1686, 378898), (2028, 315001), (2242, 284934), (2301, 277628), (2964, 215527), (3068, 208221), (3211, 198948), (3363, 189956), (3372, 189449), (3653, 174876), (4484, 142467), (4602, 138814), (5339, 119652), (6422, 99474), (6726, 94978), (7306, 87438), (9204, 69407), (9633, 66316), (9971, 64068), (10678, 59826), (10959, 58292), (12844, 49737), (13452, 47489), (14573, 43836), (14612, 43719), (16017, 39884), (16579, 38532), (19266, 33158), (19942, 32034), (21356, 29913), (21918, 29146)]