28105240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{11909}}^1$

素因数の和:11979

約数の個数: 32

約数和(自身を含む): 64314000

約数和(自身を除く): 36208760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 11909, 23818, 47636, 59545, 95272, 119090, 238180, 476360, 702631, 1405262, 2810524, 3513155, 5621048, 7026310, 14052620, 28105240]

約数ペア:

[(1, 28105240), (2, 14052620), (4, 7026310), (5, 5621048), (8, 3513155), (10, 2810524), (20, 1405262), (40, 702631), (59, 476360), (118, 238180), (236, 119090), (295, 95272), (472, 59545), (590, 47636), (1180, 23818), (2360, 11909)]