521781390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{445967}}^1$

素因数の和:445993

約数の個数: 48

約数和(自身を含む): 1460991168

約数和(自身を除く): 939209778

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 445967, 891934, 1337901, 2229835, 2675802, 4013703, 4459670, 5797571, 6689505, 8027406, 11595142, 13379010, 17392713, 20068515, 28987855, 34785426, 40137030, 52178139, 57975710, 86963565, 104356278, 173927130, 260890695, 521781390]

約数ペア:

[(1, 521781390), (2, 260890695), (3, 173927130), (5, 104356278), (6, 86963565), (9, 57975710), (10, 52178139), (13, 40137030), (15, 34785426), (18, 28987855), (26, 20068515), (30, 17392713), (39, 13379010), (45, 11595142), (65, 8027406), (78, 6689505), (90, 5797571), (117, 4459670), (130, 4013703), (195, 2675802), (234, 2229835), (390, 1337901), (585, 891934), (1170, 445967)]