20472700

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2027}}^1$

素因数の和:2142

約数の個数: 36

約数和(自身を含む): 44887752

約数和(自身を除く): 24415052

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2027, 2525, 4054, 5050, 8108, 10100, 10135, 20270, 40540, 50675, 101350, 202700, 204727, 409454, 818908, 1023635, 2047270, 4094540, 5118175, 10236350, 20472700]

約数ペア:

[(1, 20472700), (2, 10236350), (4, 5118175), (5, 4094540), (10, 2047270), (20, 1023635), (25, 818908), (50, 409454), (100, 204727), (101, 202700), (202, 101350), (404, 50675), (505, 40540), (1010, 20270), (2020, 10135), (2027, 10100), (2525, 8108), (4054, 5050)]