219330940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{645091}}^1$

素因数の和:645117

約数の個数: 24

約数和(自身を含む): 487689552

約数和(自身を除く): 268358612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 645091, 1290182, 2580364, 3225455, 6450910, 10966547, 12901820, 21933094, 43866188, 54832735, 109665470, 219330940]

約数ペア:

[(1, 219330940), (2, 109665470), (4, 54832735), (5, 43866188), (10, 21933094), (17, 12901820), (20, 10966547), (34, 6450910), (68, 3225455), (85, 2580364), (170, 1290182), (340, 645091)]