90539080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{52639}}^1$

素因数の和:52693

約数の個数: 32

約数和(自身を含む): 208454400

約数和(自身を除く): 117915320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 52639, 105278, 210556, 263195, 421112, 526390, 1052780, 2105560, 2263477, 4526954, 9053908, 11317385, 18107816, 22634770, 45269540, 90539080]

約数ペア:

[(1, 90539080), (2, 45269540), (4, 22634770), (5, 18107816), (8, 11317385), (10, 9053908), (20, 4526954), (40, 2263477), (43, 2105560), (86, 1052780), (172, 526390), (215, 421112), (344, 263195), (430, 210556), (860, 105278), (1720, 52639)]