290778820

素因数分解:

$2^2\times 5^1\times {\mathrm{2129}}^1\times {\mathrm{6829}}^1$

素因数の和:8967

約数の個数: 24

約数和(自身を含む): 611011800

約数和(自身を除く): 320232980

約数列:

[1, 2, 4, 5, 10, 20, 2129, 4258, 6829, 8516, 10645, 13658, 21290, 27316, 34145, 42580, 68290, 136580, 14538941, 29077882, 58155764, 72694705, 145389410, 290778820]

約数ペア:

[(1, 290778820), (2, 145389410), (4, 72694705), (5, 58155764), (10, 29077882), (20, 14538941), (2129, 136580), (4258, 68290), (6829, 42580), (8516, 34145), (10645, 27316), (13658, 21290)]