218385490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^2\times {\mathrm{5869}}^1$

素因数の和:5998

約数の個数: 24

約数和(自身を含む): 399711780

約数和(自身を除く): 181326290

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 3721, 5869, 7442, 11738, 18605, 29345, 37210, 58690, 358009, 716018, 1790045, 3580090, 21838549, 43677098, 109192745, 218385490]

約数ペア:

[(1, 218385490), (2, 109192745), (5, 43677098), (10, 21838549), (61, 3580090), (122, 1790045), (305, 716018), (610, 358009), (3721, 58690), (5869, 37210), (7442, 29345), (11738, 18605)]