20707870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2971}}^1$

素因数の和:3036

約数の個数: 32

約数和(自身を含む): 40442976

約数和(自身を除く): 19735106

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 2971, 3485, 5942, 6970, 14855, 29710, 50507, 101014, 121811, 243622, 252535, 505070, 609055, 1218110, 2070787, 4141574, 10353935, 20707870]

約数ペア:

[(1, 20707870), (2, 10353935), (5, 4141574), (10, 2070787), (17, 1218110), (34, 609055), (41, 505070), (82, 252535), (85, 243622), (170, 121811), (205, 101014), (410, 50507), (697, 29710), (1394, 14855), (2971, 6970), (3485, 5942)]