251521075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{3889}}^1$

素因数の和:4111

約数の個数: 24

約数和(自身を含む): 337652000

約数和(自身を除く): 86130925

約数列:

[1, 5, 13, 25, 65, 199, 325, 995, 2587, 3889, 4975, 12935, 19445, 50557, 64675, 97225, 252785, 773911, 1263925, 3869555, 10060843, 19347775, 50304215, 251521075]

約数ペア:

[(1, 251521075), (5, 50304215), (13, 19347775), (25, 10060843), (65, 3869555), (199, 1263925), (325, 773911), (995, 252785), (2587, 97225), (3889, 64675), (4975, 50557), (12935, 19445)]