90131680

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2357}}^1$

素因数の和:2611

約数の個数: 48

約数和(自身を含む): 213917760

約数和(自身を除く): 123786080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1912, 2357, 2390, 3824, 4714, 4780, 7648, 9428, 9560, 11785, 18856, 19120, 23570, 37712, 38240, 47140, 75424, 94280, 188560, 377120, 563323, 1126646, 2253292, 2816615, 4506584, 5633230, 9013168, 11266460, 18026336, 22532920, 45065840, 90131680]

約数ペア:

[(1, 90131680), (2, 45065840), (4, 22532920), (5, 18026336), (8, 11266460), (10, 9013168), (16, 5633230), (20, 4506584), (32, 2816615), (40, 2253292), (80, 1126646), (160, 563323), (239, 377120), (478, 188560), (956, 94280), (1195, 75424), (1912, 47140), (2357, 38240), (2390, 37712), (3824, 23570), (4714, 19120), (4780, 18856), (7648, 11785), (9428, 9560)]