451640450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2389}}^1$

素因数の和:2619

約数の個数: 48

約数和(自身を含む): 889080000

約数和(自身を除く): 437439550

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 199, 398, 475, 950, 995, 1990, 2389, 3781, 4778, 4975, 7562, 9950, 11945, 18905, 23890, 37810, 45391, 59725, 90782, 94525, 119450, 189050, 226955, 453910, 475411, 950822, 1134775, 2269550, 2377055, 4754110, 9032809, 11885275, 18065618, 23770550, 45164045, 90328090, 225820225, 451640450]

約数ペア:

[(1, 451640450), (2, 225820225), (5, 90328090), (10, 45164045), (19, 23770550), (25, 18065618), (38, 11885275), (50, 9032809), (95, 4754110), (190, 2377055), (199, 2269550), (398, 1134775), (475, 950822), (950, 475411), (995, 453910), (1990, 226955), (2389, 189050), (3781, 119450), (4778, 94525), (4975, 90782), (7562, 59725), (9950, 45391), (11945, 37810), (18905, 23890)]