80456840

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{10531}}^1$

素因数の和:10733

約数の個数: 32

約数和(自身を含む): 181992960

約数和(自身を除く): 101536120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 10531, 21062, 42124, 52655, 84248, 105310, 210620, 421240, 2011421, 4022842, 8045684, 10057105, 16091368, 20114210, 40228420, 80456840]

約数ペア:

[(1, 80456840), (2, 40228420), (4, 20114210), (5, 16091368), (8, 10057105), (10, 8045684), (20, 4022842), (40, 2011421), (191, 421240), (382, 210620), (764, 105310), (955, 84248), (1528, 52655), (1910, 42124), (3820, 21062), (7640, 10531)]