20209888915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1\times {\mathrm{269879}}^1$

素因数の和:270782

約数の個数: 16

約数和(自身を含む): 25707689280

約数和(自身を除く): 5497800365

約数列:

[1, 5, 17, 85, 881, 4405, 14977, 74885, 269879, 1349395, 4587943, 22939715, 237763399, 1188816995, 4041977783, 20209888915]

約数ペア:

[(1, 20209888915), (5, 4041977783), (17, 1188816995), (85, 237763399), (881, 22939715), (4405, 4587943), (14977, 1349395), (74885, 269879)]