68845790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{811}}^1$

素因数の和:1484

約数の個数: 32

約数和(自身を含む): 133824096

約数和(自身を除く): 64978306

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 653, 811, 1306, 1622, 3265, 4055, 6530, 8110, 8489, 10543, 16978, 21086, 42445, 52715, 84890, 105430, 529583, 1059166, 2647915, 5295830, 6884579, 13769158, 34422895, 68845790]

約数ペア:

[(1, 68845790), (2, 34422895), (5, 13769158), (10, 6884579), (13, 5295830), (26, 2647915), (65, 1059166), (130, 529583), (653, 105430), (811, 84890), (1306, 52715), (1622, 42445), (3265, 21086), (4055, 16978), (6530, 10543), (8110, 8489)]