28029980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2963}}^1$

素因数の和:3026

約数の個数: 48

約数和(自身を含む): 65729664

約数和(自身を除く): 37699684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 2963, 4730, 5926, 9460, 11852, 14815, 29630, 32593, 59260, 65186, 127409, 130372, 162965, 254818, 325930, 509636, 637045, 651860, 1274090, 1401499, 2548180, 2802998, 5605996, 7007495, 14014990, 28029980]

約数ペア:

[(1, 28029980), (2, 14014990), (4, 7007495), (5, 5605996), (10, 2802998), (11, 2548180), (20, 1401499), (22, 1274090), (43, 651860), (44, 637045), (55, 509636), (86, 325930), (110, 254818), (172, 162965), (215, 130372), (220, 127409), (430, 65186), (473, 59260), (860, 32593), (946, 29630), (1892, 14815), (2365, 11852), (2963, 9460), (4730, 5926)]