208169820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18959}}^1$

素因数の和:19035

約数の個数: 72

約数和(自身を含む): 641833920

約数和(自身を除く): 433664100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 18959, 37918, 56877, 75836, 94795, 113754, 170631, 189590, 227508, 284385, 341262, 379180, 568770, 682524, 853155, 1137540, 1156499, 1706310, 2312998, 3412620, 3469497, 4625996, 5782495, 6938994, 10408491, 11564990, 13877988, 17347485, 20816982, 23129980, 34694970, 41633964, 52042455, 69389940, 104084910, 208169820]

約数ペア:

[(1, 208169820), (2, 104084910), (3, 69389940), (4, 52042455), (5, 41633964), (6, 34694970), (9, 23129980), (10, 20816982), (12, 17347485), (15, 13877988), (18, 11564990), (20, 10408491), (30, 6938994), (36, 5782495), (45, 4625996), (60, 3469497), (61, 3412620), (90, 2312998), (122, 1706310), (180, 1156499), (183, 1137540), (244, 853155), (305, 682524), (366, 568770), (549, 379180), (610, 341262), (732, 284385), (915, 227508), (1098, 189590), (1220, 170631), (1830, 113754), (2196, 94795), (2745, 75836), (3660, 56877), (5490, 37918), (10980, 18959)]