189918180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2939}}^1$

素因数の和:3313

約数の個数: 72

約数和(自身を含む): 577886400

約数和(自身を除く): 387968220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359, 718, 1077, 1436, 1795, 2154, 2939, 3231, 3590, 4308, 5385, 5878, 6462, 7180, 8817, 10770, 11756, 12924, 14695, 16155, 17634, 21540, 26451, 29390, 32310, 35268, 44085, 52902, 58780, 64620, 88170, 105804, 132255, 176340, 264510, 529020, 1055101, 2110202, 3165303, 4220404, 5275505, 6330606, 9495909, 10551010, 12661212, 15826515, 18991818, 21102020, 31653030, 37983636, 47479545, 63306060, 94959090, 189918180]

約数ペア:

[(1, 189918180), (2, 94959090), (3, 63306060), (4, 47479545), (5, 37983636), (6, 31653030), (9, 21102020), (10, 18991818), (12, 15826515), (15, 12661212), (18, 10551010), (20, 9495909), (30, 6330606), (36, 5275505), (45, 4220404), (60, 3165303), (90, 2110202), (180, 1055101), (359, 529020), (718, 264510), (1077, 176340), (1436, 132255), (1795, 105804), (2154, 88170), (2939, 64620), (3231, 58780), (3590, 52902), (4308, 44085), (5385, 35268), (5878, 32310), (6462, 29390), (7180, 26451), (8817, 21540), (10770, 17634), (11756, 16155), (12924, 14695)]