82279980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1381}}^1$

素因数の和:1727

約数の個数: 72

約数和(自身を含む): 250517904

約数和(自身を除く): 168237924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 993, 1324, 1381, 1655, 1986, 2762, 2979, 3310, 3972, 4143, 4965, 5524, 5958, 6620, 6905, 8286, 9930, 11916, 12429, 13810, 14895, 16572, 19860, 20715, 24858, 27620, 29790, 41430, 49716, 59580, 62145, 82860, 124290, 248580, 457111, 914222, 1371333, 1828444, 2285555, 2742666, 4113999, 4571110, 5485332, 6856665, 8227998, 9142220, 13713330, 16455996, 20569995, 27426660, 41139990, 82279980]

約数ペア:

[(1, 82279980), (2, 41139990), (3, 27426660), (4, 20569995), (5, 16455996), (6, 13713330), (9, 9142220), (10, 8227998), (12, 6856665), (15, 5485332), (18, 4571110), (20, 4113999), (30, 2742666), (36, 2285555), (45, 1828444), (60, 1371333), (90, 914222), (180, 457111), (331, 248580), (662, 124290), (993, 82860), (1324, 62145), (1381, 59580), (1655, 49716), (1986, 41430), (2762, 29790), (2979, 27620), (3310, 24858), (3972, 20715), (4143, 19860), (4965, 16572), (5524, 14895), (5958, 13810), (6620, 12429), (6905, 11916), (8286, 9930)]