2019464840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1231381}}^1$

素因数の和:1231433

約数の個数: 32

約数和(自身を含む): 4654623960

約数和(自身を除く): 2635159120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1231381, 2462762, 4925524, 6156905, 9851048, 12313810, 24627620, 49255240, 50486621, 100973242, 201946484, 252433105, 403892968, 504866210, 1009732420, 2019464840]

約数ペア:

[(1, 2019464840), (2, 1009732420), (4, 504866210), (5, 403892968), (8, 252433105), (10, 201946484), (20, 100973242), (40, 50486621), (41, 49255240), (82, 24627620), (164, 12313810), (205, 9851048), (328, 6156905), (410, 4925524), (820, 2462762), (1640, 1231381)]