81690908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{11467}}^1$

素因数の和:11621

約数の個数: 24

約数和(自身を含む): 155093232

約数和(自身を除く): 73402324

約数列:

[1, 2, 4, 13, 26, 52, 137, 274, 548, 1781, 3562, 7124, 11467, 22934, 45868, 149071, 298142, 596284, 1570979, 3141958, 6283916, 20422727, 40845454, 81690908]

約数ペア:

[(1, 81690908), (2, 40845454), (4, 20422727), (13, 6283916), (26, 3141958), (52, 1570979), (137, 596284), (274, 298142), (548, 149071), (1781, 45868), (3562, 22934), (7124, 11467)]