180731960

素因数分解:

$2^3\times 5^1\times {\mathrm{1307}}^1\times {\mathrm{3457}}^1$

素因数の和:4775

約数の個数: 32

約数和(自身を含む): 407075760

約数和(自身を除く): 226343800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1307, 2614, 3457, 5228, 6535, 6914, 10456, 13070, 13828, 17285, 26140, 27656, 34570, 52280, 69140, 138280, 4518299, 9036598, 18073196, 22591495, 36146392, 45182990, 90365980, 180731960]

約数ペア:

[(1, 180731960), (2, 90365980), (4, 45182990), (5, 36146392), (8, 22591495), (10, 18073196), (20, 9036598), (40, 4518299), (1307, 138280), (2614, 69140), (3457, 52280), (5228, 34570), (6535, 27656), (6914, 26140), (10456, 17285), (13070, 13828)]