56712580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 121806720

約数和(自身を除く): 65094140

約数列:

[1, 2, 4, 5, 10, 20, 89, 151, 178, 211, 302, 356, 422, 445, 604, 755, 844, 890, 1055, 1510, 1780, 2110, 3020, 4220, 13439, 18779, 26878, 31861, 37558, 53756, 63722, 67195, 75116, 93895, 127444, 134390, 159305, 187790, 268780, 318610, 375580, 637220, 2835629, 5671258, 11342516, 14178145, 28356290, 56712580]

約数ペア:

[(1, 56712580), (2, 28356290), (4, 14178145), (5, 11342516), (10, 5671258), (20, 2835629), (89, 637220), (151, 375580), (178, 318610), (211, 268780), (302, 187790), (356, 159305), (422, 134390), (445, 127444), (604, 93895), (755, 75116), (844, 67195), (890, 63722), (1055, 53756), (1510, 37558), (1780, 31861), (2110, 26878), (3020, 18779), (4220, 13439)]