20738360

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1181}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 46807200

約数和(自身を除く): 26068840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1181, 1756, 2195, 2362, 3512, 4390, 4724, 5905, 8780, 9448, 11810, 17560, 23620, 47240, 518459, 1036918, 2073836, 2592295, 4147672, 5184590, 10369180, 20738360]

約数ペア:

[(1, 20738360), (2, 10369180), (4, 5184590), (5, 4147672), (8, 2592295), (10, 2073836), (20, 1036918), (40, 518459), (439, 47240), (878, 23620), (1181, 17560), (1756, 11810), (2195, 9448), (2362, 8780), (3512, 5905), (4390, 4724)]