201420980

素因数分解:

$2^2\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{9421}}^1$

素因数の和:10499

約数の個数: 24

約数和(自身を含む): 423424680

約数和(自身を除く): 222003700

約数列:

[1, 2, 4, 5, 10, 20, 1069, 2138, 4276, 5345, 9421, 10690, 18842, 21380, 37684, 47105, 94210, 188420, 10071049, 20142098, 40284196, 50355245, 100710490, 201420980]

約数ペア:

[(1, 201420980), (2, 100710490), (4, 50355245), (5, 40284196), (10, 20142098), (20, 10071049), (1069, 188420), (2138, 94210), (4276, 47105), (5345, 37684), (9421, 21380), (10690, 18842)]