18880456310

素因数分解:

$2^1\times 5^1\times {\mathrm{210461}}^1\times {\mathrm{8971}}^1$

素因数の和:219439

約数の個数: 16

約数和(自身を含む): 33988771152

約数和(自身を除く): 15108314842

約数列:

[1, 2, 5, 10, 8971, 17942, 44855, 89710, 210461, 420922, 1052305, 2104610, 1888045631, 3776091262, 9440228155, 18880456310]

約数ペア:

[(1, 18880456310), (2, 9440228155), (5, 3776091262), (10, 1888045631), (8971, 2104610), (17942, 1052305), (44855, 420922), (89710, 210461)]