67275220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{571}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 145873728

約数和(自身を除く): 78598508

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 548, 571, 685, 860, 1142, 1370, 2284, 2740, 2855, 5710, 5891, 11420, 11782, 23564, 24553, 29455, 49106, 58910, 78227, 98212, 117820, 122765, 156454, 245530, 312908, 391135, 491060, 782270, 1564540, 3363761, 6727522, 13455044, 16818805, 33637610, 67275220]

約数ペア:

[(1, 67275220), (2, 33637610), (4, 16818805), (5, 13455044), (10, 6727522), (20, 3363761), (43, 1564540), (86, 782270), (137, 491060), (172, 391135), (215, 312908), (274, 245530), (430, 156454), (548, 122765), (571, 117820), (685, 98212), (860, 78227), (1142, 58910), (1370, 49106), (2284, 29455), (2740, 24553), (2855, 23564), (5710, 11782), (5891, 11420)]