20122100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6491}}^1$

素因数の和:6536

約数の個数: 36

約数和(自身を含む): 45080448

約数和(自身を除く): 24958348

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6491, 12982, 25964, 32455, 64910, 129820, 162275, 201221, 324550, 402442, 649100, 804884, 1006105, 2012210, 4024420, 5030525, 10061050, 20122100]

約数ペア:

[(1, 20122100), (2, 10061050), (4, 5030525), (5, 4024420), (10, 2012210), (20, 1006105), (25, 804884), (31, 649100), (50, 402442), (62, 324550), (100, 201221), (124, 162275), (155, 129820), (310, 64910), (620, 32455), (775, 25964), (1550, 12982), (3100, 6491)]