215994920

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{7307}}^1$

素因数の和:8057

約数の個数: 32

約数和(自身を含む): 486712800

約数和(自身を除く): 270717880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1478, 2956, 3695, 5912, 7307, 7390, 14614, 14780, 29228, 29560, 36535, 58456, 73070, 146140, 292280, 5399873, 10799746, 21599492, 26999365, 43198984, 53998730, 107997460, 215994920]

約数ペア:

[(1, 215994920), (2, 107997460), (4, 53998730), (5, 43198984), (8, 26999365), (10, 21599492), (20, 10799746), (40, 5399873), (739, 292280), (1478, 146140), (2956, 73070), (3695, 58456), (5912, 36535), (7307, 29560), (7390, 29228), (14614, 14780)]