520011875

素因数分解:

$5^4\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 676658400

約数和(自身を除く): 156646525

約数列:

[1, 5, 25, 37, 113, 125, 185, 199, 565, 625, 925, 995, 2825, 4181, 4625, 4975, 7363, 14125, 20905, 22487, 23125, 24875, 36815, 70625, 104525, 112435, 124375, 184075, 522625, 562175, 832019, 920375, 2613125, 2810875, 4160095, 4601875, 14054375, 20800475, 104002375, 520011875]

約数ペア:

[(1, 520011875), (5, 104002375), (25, 20800475), (37, 14054375), (113, 4601875), (125, 4160095), (185, 2810875), (199, 2613125), (565, 920375), (625, 832019), (925, 562175), (995, 522625), (2825, 184075), (4181, 124375), (4625, 112435), (4975, 104525), (7363, 70625), (14125, 36815), (20905, 24875), (22487, 23125)]