20490250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7451}}^1$

素因数の和:7479

約数の個数: 32

約数和(自身を含む): 41850432

約数和(自身を除く): 21360182

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7451, 14902, 37255, 74510, 81961, 163922, 186275, 372550, 409805, 819610, 931375, 1862750, 2049025, 4098050, 10245125, 20490250]

約数ペア:

[(1, 20490250), (2, 10245125), (5, 4098050), (10, 2049025), (11, 1862750), (22, 931375), (25, 819610), (50, 409805), (55, 372550), (110, 186275), (125, 163922), (250, 81961), (275, 74510), (550, 37255), (1375, 14902), (2750, 7451)]