19263980

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5381}}^1$

素因数の和:5569

約数の個数: 24

約数和(自身を含む): 40687920

約数和(自身を除く): 21423940

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5381, 10762, 21524, 26905, 53810, 107620, 963199, 1926398, 3852796, 4815995, 9631990, 19263980]

約数ペア:

[(1, 19263980), (2, 9631990), (4, 4815995), (5, 3852796), (10, 1926398), (20, 963199), (179, 107620), (358, 53810), (716, 26905), (895, 21524), (1790, 10762), (3580, 5381)]