20648133025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1\times {\mathrm{2399}}^1$

素因数の和:2866

約数の個数: 48

約数和(自身を含む): 28048204800

約数和(自身を除く): 7400071775

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 373, 923, 1775, 1865, 2399, 4615, 4849, 9325, 11995, 23075, 24245, 26483, 31187, 59975, 121225, 132415, 155935, 170329, 344279, 662075, 779675, 851645, 894827, 1721395, 2214277, 4258225, 4474135, 8606975, 11071385, 11632751, 22370675, 55356925, 58163755, 63532717, 290818775, 317663585, 825925321, 1588317925, 4129626605, 20648133025]

約数ペア:

[(1, 20648133025), (5, 4129626605), (13, 1588317925), (25, 825925321), (65, 317663585), (71, 290818775), (325, 63532717), (355, 58163755), (373, 55356925), (923, 22370675), (1775, 11632751), (1865, 11071385), (2399, 8606975), (4615, 4474135), (4849, 4258225), (9325, 2214277), (11995, 1721395), (23075, 894827), (24245, 851645), (26483, 779675), (31187, 662075), (59975, 344279), (121225, 170329), (132415, 155935)]