17903740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 39481344

約数和(自身を除く): 21577604

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 431, 620, 670, 862, 1340, 1724, 2077, 2155, 4154, 4310, 8308, 8620, 10385, 13361, 20770, 26722, 28877, 41540, 53444, 57754, 66805, 115508, 133610, 144385, 267220, 288770, 577540, 895187, 1790374, 3580748, 4475935, 8951870, 17903740]

約数ペア:

[(1, 17903740), (2, 8951870), (4, 4475935), (5, 3580748), (10, 1790374), (20, 895187), (31, 577540), (62, 288770), (67, 267220), (124, 144385), (134, 133610), (155, 115508), (268, 66805), (310, 57754), (335, 53444), (431, 41540), (620, 28877), (670, 26722), (862, 20770), (1340, 13361), (1724, 10385), (2077, 8620), (2155, 8308), (4154, 4310)]