28418440

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1979}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 64152000

約数和(自身を除く): 35733560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 1979, 2872, 3590, 3958, 7180, 7916, 9895, 14360, 15832, 19790, 39580, 79160, 710461, 1420922, 2841844, 3552305, 5683688, 7104610, 14209220, 28418440]

約数ペア:

[(1, 28418440), (2, 14209220), (4, 7104610), (5, 5683688), (8, 3552305), (10, 2841844), (20, 1420922), (40, 710461), (359, 79160), (718, 39580), (1436, 19790), (1795, 15832), (1979, 14360), (2872, 9895), (3590, 7916), (3958, 7180)]