68721920

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1013}}^1$

素因数の和:1087

約数の個数: 72

約数和(自身を含む): 167881896

約数和(自身を除く): 99159976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 530, 640, 848, 1013, 1060, 1280, 1696, 2026, 2120, 3392, 4052, 4240, 5065, 6784, 8104, 8480, 10130, 13568, 16208, 16960, 20260, 32416, 33920, 40520, 53689, 64832, 67840, 81040, 107378, 129664, 162080, 214756, 259328, 268445, 324160, 429512, 536890, 648320, 859024, 1073780, 1296640, 1718048, 2147560, 3436096, 4295120, 6872192, 8590240, 13744384, 17180480, 34360960, 68721920]

約数ペア:

[(1, 68721920), (2, 34360960), (4, 17180480), (5, 13744384), (8, 8590240), (10, 6872192), (16, 4295120), (20, 3436096), (32, 2147560), (40, 1718048), (53, 1296640), (64, 1073780), (80, 859024), (106, 648320), (128, 536890), (160, 429512), (212, 324160), (256, 268445), (265, 259328), (320, 214756), (424, 162080), (530, 129664), (640, 107378), (848, 81040), (1013, 67840), (1060, 64832), (1280, 53689), (1696, 40520), (2026, 33920), (2120, 32416), (3392, 20260), (4052, 16960), (4240, 16208), (5065, 13568), (6784, 10130), (8104, 8480)]