20180121565

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{1697}}^1$

素因数の和:2197

約数の個数: 32

約数和(自身を含む): 24902406144

約数和(自身を除く): 4722284579

約数列:

[1, 5, 61, 127, 305, 307, 635, 1535, 1697, 7747, 8485, 18727, 38735, 38989, 93635, 103517, 194945, 215519, 517585, 520979, 1077595, 2378329, 2604895, 11891645, 13146659, 31779719, 65733295, 66164333, 158898595, 330821665, 4036024313, 20180121565]

約数ペア:

[(1, 20180121565), (5, 4036024313), (61, 330821665), (127, 158898595), (305, 66164333), (307, 65733295), (635, 31779719), (1535, 13146659), (1697, 11891645), (7747, 2604895), (8485, 2378329), (18727, 1077595), (38735, 520979), (38989, 517585), (93635, 215519), (103517, 194945)]