28163760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:746

約数の個数: 80

約数和(自身を含む): 87851520

約数和(自身を除く): 59687760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 239, 240, 478, 491, 717, 956, 982, 1195, 1434, 1473, 1912, 1964, 2390, 2455, 2868, 2946, 3585, 3824, 3928, 4780, 4910, 5736, 5892, 7170, 7365, 7856, 9560, 9820, 11472, 11784, 14340, 14730, 19120, 19640, 23568, 28680, 29460, 39280, 57360, 58920, 117349, 117840, 234698, 352047, 469396, 586745, 704094, 938792, 1173490, 1408188, 1760235, 1877584, 2346980, 2816376, 3520470, 4693960, 5632752, 7040940, 9387920, 14081880, 28163760]

約数ペア:

[(1, 28163760), (2, 14081880), (3, 9387920), (4, 7040940), (5, 5632752), (6, 4693960), (8, 3520470), (10, 2816376), (12, 2346980), (15, 1877584), (16, 1760235), (20, 1408188), (24, 1173490), (30, 938792), (40, 704094), (48, 586745), (60, 469396), (80, 352047), (120, 234698), (239, 117840), (240, 117349), (478, 58920), (491, 57360), (717, 39280), (956, 29460), (982, 28680), (1195, 23568), (1434, 19640), (1473, 19120), (1912, 14730), (1964, 14340), (2390, 11784), (2455, 11472), (2868, 9820), (2946, 9560), (3585, 7856), (3824, 7365), (3928, 7170), (4780, 5892), (4910, 5736)]