209327480

素因数分解:

$2^3\times 5^1\times {\mathrm{1871}}^1\times {\mathrm{2797}}^1$

素因数の和:4679

約数の個数: 32

約数和(自身を含む): 471407040

約数和(自身を除く): 262079560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1871, 2797, 3742, 5594, 7484, 9355, 11188, 13985, 14968, 18710, 22376, 27970, 37420, 55940, 74840, 111880, 5233187, 10466374, 20932748, 26165935, 41865496, 52331870, 104663740, 209327480]

約数ペア:

[(1, 209327480), (2, 104663740), (4, 52331870), (5, 41865496), (8, 26165935), (10, 20932748), (20, 10466374), (40, 5233187), (1871, 111880), (2797, 74840), (3742, 55940), (5594, 37420), (7484, 27970), (9355, 22376), (11188, 18710), (13985, 14968)]