72261605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 96248544

約数和(自身を除く): 23986939

約数列:

[1, 5, 13, 65, 73, 97, 157, 365, 485, 785, 949, 1261, 2041, 4745, 6305, 7081, 10205, 11461, 15229, 35405, 57305, 76145, 92053, 148993, 197977, 460265, 744965, 989885, 1111717, 5558585, 14452321, 72261605]

約数ペア:

[(1, 72261605), (5, 14452321), (13, 5558585), (65, 1111717), (73, 989885), (97, 744965), (157, 460265), (365, 197977), (485, 148993), (785, 92053), (949, 76145), (1261, 57305), (2041, 35405), (4745, 15229), (6305, 11461), (7081, 10205)]