80811220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{10891}}^1$

素因数の和:10960

約数の個数: 48

約数和(自身を含む): 197624448

約数和(自身を除く): 116813228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 10891, 21782, 43564, 54455, 76237, 108910, 152474, 217820, 304948, 381185, 577223, 762370, 1154446, 1524740, 2308892, 2886115, 4040561, 5772230, 8081122, 11544460, 16162244, 20202805, 40405610, 80811220]

約数ペア:

[(1, 80811220), (2, 40405610), (4, 20202805), (5, 16162244), (7, 11544460), (10, 8081122), (14, 5772230), (20, 4040561), (28, 2886115), (35, 2308892), (53, 1524740), (70, 1154446), (106, 762370), (140, 577223), (212, 381185), (265, 304948), (371, 217820), (530, 152474), (742, 108910), (1060, 76237), (1484, 54455), (1855, 43564), (3710, 21782), (7420, 10891)]