26490760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 63763200

約数和(自身を除く): 37272440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 163, 170, 239, 326, 340, 478, 652, 680, 815, 956, 1195, 1304, 1630, 1912, 2390, 2771, 3260, 4063, 4780, 5542, 6520, 8126, 9560, 11084, 13855, 16252, 20315, 22168, 27710, 32504, 38957, 40630, 55420, 77914, 81260, 110840, 155828, 162520, 194785, 311656, 389570, 662269, 779140, 1324538, 1558280, 2649076, 3311345, 5298152, 6622690, 13245380, 26490760]

約数ペア:

[(1, 26490760), (2, 13245380), (4, 6622690), (5, 5298152), (8, 3311345), (10, 2649076), (17, 1558280), (20, 1324538), (34, 779140), (40, 662269), (68, 389570), (85, 311656), (136, 194785), (163, 162520), (170, 155828), (239, 110840), (326, 81260), (340, 77914), (478, 55420), (652, 40630), (680, 38957), (815, 32504), (956, 27710), (1195, 22168), (1304, 20315), (1630, 16252), (1912, 13855), (2390, 11084), (2771, 9560), (3260, 8126), (4063, 6520), (4780, 5542)]