21680580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2393}}^1$

素因数の和:2556

約数の個数: 48

約数和(自身を含む): 61133184

約数和(自身を除く): 39452604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2393, 3020, 4530, 4786, 7179, 9060, 9572, 11965, 14358, 23930, 28716, 35895, 47860, 71790, 143580, 361343, 722686, 1084029, 1445372, 1806715, 2168058, 3613430, 4336116, 5420145, 7226860, 10840290, 21680580]

約数ペア:

[(1, 21680580), (2, 10840290), (3, 7226860), (4, 5420145), (5, 4336116), (6, 3613430), (10, 2168058), (12, 1806715), (15, 1445372), (20, 1084029), (30, 722686), (60, 361343), (151, 143580), (302, 71790), (453, 47860), (604, 35895), (755, 28716), (906, 23930), (1510, 14358), (1812, 11965), (2265, 9572), (2393, 9060), (3020, 7179), (4530, 4786)]