1639220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7451}}^1$

素因数の和:7471

約数の個数: 24

約数和(自身を含む): 3755808

約数和(自身を除く): 2116588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 7451, 14902, 29804, 37255, 74510, 81961, 149020, 163922, 327844, 409805, 819610, 1639220]

約数ペア:

[(1, 1639220), (2, 819610), (4, 409805), (5, 327844), (10, 163922), (11, 149020), (20, 81961), (22, 74510), (44, 37255), (55, 29804), (110, 14902), (220, 7451)]