64203280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42239}}^1$

素因数の和:42271

約数の個数: 40

約数和(自身を含む): 157132800

約数和(自身を除く): 92929520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42239, 84478, 168956, 211195, 337912, 422390, 675824, 802541, 844780, 1605082, 1689560, 3210164, 3379120, 4012705, 6420328, 8025410, 12840656, 16050820, 32101640, 64203280]

約数ペア:

[(1, 64203280), (2, 32101640), (4, 16050820), (5, 12840656), (8, 8025410), (10, 6420328), (16, 4012705), (19, 3379120), (20, 3210164), (38, 1689560), (40, 1605082), (76, 844780), (80, 802541), (95, 675824), (152, 422390), (190, 337912), (304, 211195), (380, 168956), (760, 84478), (1520, 42239)]