851207450

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1151

約数の個数: 48

約数和(自身を含む): 1608647040

約数和(自身を除く): 757439590

約数列:

[1, 2, 5, 10, 25, 50, 103, 197, 206, 394, 515, 839, 985, 1030, 1678, 1970, 2575, 4195, 4925, 5150, 8390, 9850, 20291, 20975, 40582, 41950, 86417, 101455, 165283, 172834, 202910, 330566, 432085, 507275, 826415, 864170, 1014550, 1652830, 2160425, 4132075, 4320850, 8264150, 17024149, 34048298, 85120745, 170241490, 425603725, 851207450]

約数ペア:

[(1, 851207450), (2, 425603725), (5, 170241490), (10, 85120745), (25, 34048298), (50, 17024149), (103, 8264150), (197, 4320850), (206, 4132075), (394, 2160425), (515, 1652830), (839, 1014550), (985, 864170), (1030, 826415), (1678, 507275), (1970, 432085), (2575, 330566), (4195, 202910), (4925, 172834), (5150, 165283), (8390, 101455), (9850, 86417), (20291, 41950), (20975, 40582)]