21968880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 68567040

約数和(自身を除く): 46598160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 383, 478, 717, 766, 956, 1149, 1195, 1434, 1532, 1912, 1915, 2298, 2390, 2868, 3064, 3585, 3824, 3830, 4596, 4780, 5736, 5745, 6128, 7170, 7660, 9192, 9560, 11472, 11490, 14340, 15320, 18384, 19120, 22980, 28680, 30640, 45960, 57360, 91537, 91920, 183074, 274611, 366148, 457685, 549222, 732296, 915370, 1098444, 1373055, 1464592, 1830740, 2196888, 2746110, 3661480, 4393776, 5492220, 7322960, 10984440, 21968880]

約数ペア:

[(1, 21968880), (2, 10984440), (3, 7322960), (4, 5492220), (5, 4393776), (6, 3661480), (8, 2746110), (10, 2196888), (12, 1830740), (15, 1464592), (16, 1373055), (20, 1098444), (24, 915370), (30, 732296), (40, 549222), (48, 457685), (60, 366148), (80, 274611), (120, 183074), (239, 91920), (240, 91537), (383, 57360), (478, 45960), (717, 30640), (766, 28680), (956, 22980), (1149, 19120), (1195, 18384), (1434, 15320), (1532, 14340), (1912, 11490), (1915, 11472), (2298, 9560), (2390, 9192), (2868, 7660), (3064, 7170), (3585, 6128), (3824, 5745), (3830, 5736), (4596, 4780)]