388802450

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:731

約数の個数: 48

約数和(自身を含む): 737095680

約数和(自身を除く): 348293230

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 257, 383, 395, 514, 766, 790, 1285, 1915, 1975, 2570, 3830, 3950, 6425, 9575, 12850, 19150, 20303, 30257, 40606, 60514, 98431, 101515, 151285, 196862, 203030, 302570, 492155, 507575, 756425, 984310, 1015150, 1512850, 2460775, 4921550, 7776049, 15552098, 38880245, 77760490, 194401225, 388802450]

約数ペア:

[(1, 388802450), (2, 194401225), (5, 77760490), (10, 38880245), (25, 15552098), (50, 7776049), (79, 4921550), (158, 2460775), (257, 1512850), (383, 1015150), (395, 984310), (514, 756425), (766, 507575), (790, 492155), (1285, 302570), (1915, 203030), (1975, 196862), (2570, 151285), (3830, 101515), (3950, 98431), (6425, 60514), (9575, 40606), (12850, 30257), (19150, 20303)]