31661980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{11903}}^1$

素因数の和:11938

約数の個数: 48

約数和(自身を含む): 79994880

約数和(自身を除く): 48332900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 11903, 23806, 47612, 59515, 83321, 119030, 166642, 226157, 238060, 333284, 416605, 452314, 833210, 904628, 1130785, 1583099, 1666420, 2261570, 3166198, 4523140, 6332396, 7915495, 15830990, 31661980]

約数ペア:

[(1, 31661980), (2, 15830990), (4, 7915495), (5, 6332396), (7, 4523140), (10, 3166198), (14, 2261570), (19, 1666420), (20, 1583099), (28, 1130785), (35, 904628), (38, 833210), (70, 452314), (76, 416605), (95, 333284), (133, 238060), (140, 226157), (190, 166642), (266, 119030), (380, 83321), (532, 59515), (665, 47612), (1330, 23806), (2660, 11903)]