840366980

素因数分解:

$2^2\times 5^1\times {\mathrm{10357}}^1\times {\mathrm{4057}}^1$

素因数の和:14423

約数の個数: 24

約数和(自身を含む): 1765376088

約数和(自身を除く): 925009108

約数列:

[1, 2, 4, 5, 10, 20, 4057, 8114, 10357, 16228, 20285, 20714, 40570, 41428, 51785, 81140, 103570, 207140, 42018349, 84036698, 168073396, 210091745, 420183490, 840366980]

約数ペア:

[(1, 840366980), (2, 420183490), (4, 210091745), (5, 168073396), (10, 84036698), (20, 42018349), (4057, 207140), (8114, 103570), (10357, 81140), (16228, 51785), (20285, 41428), (20714, 40570)]