64778375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 84963840

約数和(自身を除く): 20185465

約数列:

[1, 5, 25, 31, 73, 125, 155, 229, 365, 775, 1145, 1825, 2263, 3875, 5725, 7099, 9125, 11315, 16717, 28625, 35495, 56575, 83585, 177475, 282875, 417925, 518227, 887375, 2089625, 2591135, 12955675, 64778375]

約数ペア:

[(1, 64778375), (5, 12955675), (25, 2591135), (31, 2089625), (73, 887375), (125, 518227), (155, 417925), (229, 282875), (365, 177475), (775, 83585), (1145, 56575), (1825, 35495), (2263, 28625), (3875, 16717), (5725, 11315), (7099, 9125)]