71845940

素因数分解:

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

素因数の和:2228

約数の個数: 36

約数和(自身を含む): 154718508

約数和(自身を除く): 82872568

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 2137, 3362, 4274, 6724, 8405, 8548, 10685, 16810, 21370, 33620, 42740, 87617, 175234, 350468, 438085, 876170, 1752340, 3592297, 7184594, 14369188, 17961485, 35922970, 71845940]

約数ペア:

[(1, 71845940), (2, 35922970), (4, 17961485), (5, 14369188), (10, 7184594), (20, 3592297), (41, 1752340), (82, 876170), (164, 438085), (205, 350468), (410, 175234), (820, 87617), (1681, 42740), (2137, 33620), (3362, 21370), (4274, 16810), (6724, 10685), (8405, 8548)]