640428984

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2887}}^1$

素因数の和:2994

約数の個数: 128

約数和(自身を含む): 1940736000

約数和(自身を除く): 1300307016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 79, 104, 108, 117, 156, 158, 216, 234, 237, 312, 316, 351, 468, 474, 632, 702, 711, 936, 948, 1027, 1404, 1422, 1896, 2054, 2133, 2808, 2844, 2887, 3081, 4108, 4266, 5688, 5774, 6162, 8216, 8532, 8661, 9243, 11548, 12324, 17064, 17322, 18486, 23096, 24648, 25983, 27729, 34644, 36972, 37531, 51966, 55458, 69288, 73944, 75062, 77949, 103932, 110916, 112593, 150124, 155898, 207864, 221832, 225186, 228073, 300248, 311796, 337779, 450372, 456146, 623592, 675558, 684219, 900744, 912292, 1013337, 1351116, 1368438, 1824584, 2026674, 2052657, 2702232, 2736876, 2964949, 4053348, 4105314, 5473752, 5929898, 6157971, 8106696, 8210628, 8894847, 11859796, 12315942, 16421256, 17789694, 23719592, 24631884, 26684541, 35579388, 49263768, 53369082, 71158776, 80053623, 106738164, 160107246, 213476328, 320214492, 640428984]

約数ペア:

[(1, 640428984), (2, 320214492), (3, 213476328), (4, 160107246), (6, 106738164), (8, 80053623), (9, 71158776), (12, 53369082), (13, 49263768), (18, 35579388), (24, 26684541), (26, 24631884), (27, 23719592), (36, 17789694), (39, 16421256), (52, 12315942), (54, 11859796), (72, 8894847), (78, 8210628), (79, 8106696), (104, 6157971), (108, 5929898), (117, 5473752), (156, 4105314), (158, 4053348), (216, 2964949), (234, 2736876), (237, 2702232), (312, 2052657), (316, 2026674), (351, 1824584), (468, 1368438), (474, 1351116), (632, 1013337), (702, 912292), (711, 900744), (936, 684219), (948, 675558), (1027, 623592), (1404, 456146), (1422, 450372), (1896, 337779), (2054, 311796), (2133, 300248), (2808, 228073), (2844, 225186), (2887, 221832), (3081, 207864), (4108, 155898), (4266, 150124), (5688, 112593), (5774, 110916), (6162, 103932), (8216, 77949), (8532, 75062), (8661, 73944), (9243, 69288), (11548, 55458), (12324, 51966), (17064, 37531), (17322, 36972), (18486, 34644), (23096, 27729), (24648, 25983)]