81085280

素因数分解:

$2^5\times 5^1\times {\mathrm{506783}}^1$

素因数の和:506798

約数の個数: 24

約数和(自身を含む): 191564352

約数和(自身を除く): 110479072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 506783, 1013566, 2027132, 2533915, 4054264, 5067830, 8108528, 10135660, 16217056, 20271320, 40542640, 81085280]

約数ペア:

[(1, 81085280), (2, 40542640), (4, 20271320), (5, 16217056), (8, 10135660), (10, 8108528), (16, 5067830), (20, 4054264), (32, 2533915), (40, 2027132), (80, 1013566), (160, 506783)]