1620245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 2151360

約数和(自身を除く): 531115

約数列:

[1, 5, 11, 55, 89, 331, 445, 979, 1655, 3641, 4895, 18205, 29459, 147295, 324049, 1620245]

約数ペア:

[(1, 1620245), (5, 324049), (11, 147295), (55, 29459), (89, 18205), (331, 4895), (445, 3641), (979, 1655)]