80490460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211817}}^1$

素因数の和:211845

約数の個数: 24

約数和(自身を含む): 177927120

約数和(自身を除く): 97436660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 211817, 423634, 847268, 1059085, 2118170, 4024523, 4236340, 8049046, 16098092, 20122615, 40245230, 80490460]

約数ペア:

[(1, 80490460), (2, 40245230), (4, 20122615), (5, 16098092), (10, 8049046), (19, 4236340), (20, 4024523), (38, 2118170), (76, 1059085), (95, 847268), (190, 423634), (380, 211817)]