31338340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 72281664

約数和(自身を除く): 40943324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 787, 905, 1574, 1810, 1991, 3148, 3620, 3935, 3982, 7870, 7964, 8657, 9955, 15740, 17314, 19910, 34628, 39820, 43285, 86570, 142447, 173140, 284894, 569788, 712235, 1424470, 1566917, 2848940, 3133834, 6267668, 7834585, 15669170, 31338340]

約数ペア:

[(1, 31338340), (2, 15669170), (4, 7834585), (5, 6267668), (10, 3133834), (11, 2848940), (20, 1566917), (22, 1424470), (44, 712235), (55, 569788), (110, 284894), (181, 173140), (220, 142447), (362, 86570), (724, 43285), (787, 39820), (905, 34628), (1574, 19910), (1810, 17314), (1991, 15740), (3148, 9955), (3620, 8657), (3935, 7964), (3982, 7870)]