64261990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26017}}^1$

素因数の和:26056

約数の個数: 32

約数和(自身を含む): 131130720

約数和(自身を除く): 66868730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 26017, 52034, 130085, 260170, 338221, 494323, 676442, 988646, 1691105, 2471615, 3382210, 4943230, 6426199, 12852398, 32130995, 64261990]

約数ペア:

[(1, 64261990), (2, 32130995), (5, 12852398), (10, 6426199), (13, 4943230), (19, 3382210), (26, 2471615), (38, 1691105), (65, 988646), (95, 676442), (130, 494323), (190, 338221), (247, 260170), (494, 130085), (1235, 52034), (2470, 26017)]