22780420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2137}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 52800048

約数和(自身を除く): 30019628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2137, 2665, 4274, 5330, 8548, 10660, 10685, 21370, 27781, 42740, 55562, 87617, 111124, 138905, 175234, 277810, 350468, 438085, 555620, 876170, 1139021, 1752340, 2278042, 4556084, 5695105, 11390210, 22780420]

約数ペア:

[(1, 22780420), (2, 11390210), (4, 5695105), (5, 4556084), (10, 2278042), (13, 1752340), (20, 1139021), (26, 876170), (41, 555620), (52, 438085), (65, 350468), (82, 277810), (130, 175234), (164, 138905), (205, 111124), (260, 87617), (410, 55562), (533, 42740), (820, 27781), (1066, 21370), (2132, 10685), (2137, 10660), (2665, 8548), (4274, 5330)]