20137625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 32

約数和(自身を含む): 27081600

約数和(自身を除く): 6943975

約数列:

[1, 5, 19, 25, 61, 95, 125, 139, 305, 475, 695, 1159, 1525, 2375, 2641, 3475, 5795, 7625, 8479, 13205, 17375, 28975, 42395, 66025, 144875, 161101, 211975, 330125, 805505, 1059875, 4027525, 20137625]

約数ペア:

[(1, 20137625), (5, 4027525), (19, 1059875), (25, 805505), (61, 330125), (95, 211975), (125, 161101), (139, 144875), (305, 66025), (475, 42395), (695, 28975), (1159, 17375), (1525, 13205), (2375, 8479), (2641, 7625), (3475, 5795)]