28490275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 38801088

約数和(自身を除く): 10310813

約数列:

[1, 5, 11, 25, 55, 211, 275, 491, 1055, 2321, 2455, 5275, 5401, 11605, 12275, 27005, 58025, 103601, 135025, 518005, 1139611, 2590025, 5698055, 28490275]

約数ペア:

[(1, 28490275), (5, 5698055), (11, 2590025), (25, 1139611), (55, 518005), (211, 135025), (275, 103601), (491, 58025), (1055, 27005), (2321, 12275), (2455, 11605), (5275, 5401)]