1812005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 2385264

約数和(自身を除く): 573259

約数列:

[1, 5, 13, 61, 65, 305, 457, 793, 2285, 3965, 5941, 27877, 29705, 139385, 362401, 1812005]

約数ペア:

[(1, 1812005), (5, 362401), (13, 139385), (61, 29705), (65, 27877), (305, 5941), (457, 3965), (793, 2285)]