1911288125

素因数分解:

$5^4\times {\mathrm{1427}}^1\times {\mathrm{2143}}^1$

素因数の和:3590

約数の個数: 20

約数和(自身を含む): 2391134592

約数和(自身を除く): 479846467

約数列:

[1, 5, 25, 125, 625, 1427, 2143, 7135, 10715, 35675, 53575, 178375, 267875, 891875, 1339375, 3058061, 15290305, 76451525, 382257625, 1911288125]

約数ペア:

[(1, 1911288125), (5, 382257625), (25, 76451525), (125, 15290305), (625, 3058061), (1427, 1339375), (2143, 891875), (7135, 267875), (10715, 178375), (35675, 53575)]