78372220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{28603}}^1$

素因数の和:28749

約数の個数: 24

約数和(自身を含む): 165788784

約数和(自身を除く): 87416564

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 28603, 57206, 114412, 143015, 286030, 572060, 3918611, 7837222, 15674444, 19593055, 39186110, 78372220]

約数ペア:

[(1, 78372220), (2, 39186110), (4, 19593055), (5, 15674444), (10, 7837222), (20, 3918611), (137, 572060), (274, 286030), (548, 143015), (685, 114412), (1370, 57206), (2740, 28603)]