64380100

素因数分解:

$2^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{2887}}^1$

素因数の和:3124

約数の個数: 36

約数和(自身を含む): 140379904

約数和(自身を除く): 75999804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 223, 446, 892, 1115, 2230, 2887, 4460, 5575, 5774, 11150, 11548, 14435, 22300, 28870, 57740, 72175, 144350, 288700, 643801, 1287602, 2575204, 3219005, 6438010, 12876020, 16095025, 32190050, 64380100]

約数ペア:

[(1, 64380100), (2, 32190050), (4, 16095025), (5, 12876020), (10, 6438010), (20, 3219005), (25, 2575204), (50, 1287602), (100, 643801), (223, 288700), (446, 144350), (892, 72175), (1115, 57740), (2230, 28870), (2887, 22300), (4460, 14435), (5575, 11548), (5774, 11150)]