647364730

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{6473}}^1$

素因数の和:6690

約数の個数: 32

約数和(自身を含む): 1190024784

約数和(自身を除く): 542660054

約数列:

[1, 2, 5, 10, 73, 137, 146, 274, 365, 685, 730, 1370, 6473, 10001, 12946, 20002, 32365, 50005, 64730, 100010, 472529, 886801, 945058, 1773602, 2362645, 4434005, 4725290, 8868010, 64736473, 129472946, 323682365, 647364730]

約数ペア:

[(1, 647364730), (2, 323682365), (5, 129472946), (10, 64736473), (73, 8868010), (137, 4725290), (146, 4434005), (274, 2362645), (365, 1773602), (685, 945058), (730, 886801), (1370, 472529), (6473, 100010), (10001, 64730), (12946, 50005), (20002, 32365)]