20654230

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 39268800

約数和(自身を除く): 18614570

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 1009, 2018, 2047, 4094, 5045, 10090, 10235, 20470, 23207, 46414, 89801, 116035, 179602, 232070, 449005, 898010, 2065423, 4130846, 10327115, 20654230]

約数ペア:

[(1, 20654230), (2, 10327115), (5, 4130846), (10, 2065423), (23, 898010), (46, 449005), (89, 232070), (115, 179602), (178, 116035), (230, 89801), (445, 46414), (890, 23207), (1009, 20470), (2018, 10235), (2047, 10090), (4094, 5045)]