2545100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:866

約数の個数: 36

約数和(自身を含む): 5707968

約数和(自身を除く): 3162868

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 821, 1550, 1642, 3100, 3284, 4105, 8210, 16420, 20525, 25451, 41050, 50902, 82100, 101804, 127255, 254510, 509020, 636275, 1272550, 2545100]

約数ペア:

[(1, 2545100), (2, 1272550), (4, 636275), (5, 509020), (10, 254510), (20, 127255), (25, 101804), (31, 82100), (50, 50902), (62, 41050), (100, 25451), (124, 20525), (155, 16420), (310, 8210), (620, 4105), (775, 3284), (821, 3100), (1550, 1642)]