20187318544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40700239}}^1$

素因数の和:40700278

約数の個数: 20

約数和(自身を含む): 40374638080

約数和(自身を除く): 20187319536

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40700239, 81400478, 162800956, 325601912, 651203824, 1261707409, 2523414818, 5046829636, 10093659272, 20187318544]

約数ペア:

[(1, 20187318544), (2, 10093659272), (4, 5046829636), (8, 2523414818), (16, 1261707409), (31, 651203824), (62, 325601912), (124, 162800956), (248, 81400478), (496, 40700239)]