81508860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23833}}^1$

素因数の和:23867

約数の個数: 72

約数和(自身を含む): 260267280

約数和(自身を除く): 178758420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23833, 47666, 71499, 95332, 119165, 142998, 214497, 238330, 285996, 357495, 428994, 452827, 476660, 714990, 857988, 905654, 1072485, 1358481, 1429980, 1811308, 2144970, 2264135, 2716962, 4075443, 4289940, 4528270, 5433924, 6792405, 8150886, 9056540, 13584810, 16301772, 20377215, 27169620, 40754430, 81508860]

約数ペア:

[(1, 81508860), (2, 40754430), (3, 27169620), (4, 20377215), (5, 16301772), (6, 13584810), (9, 9056540), (10, 8150886), (12, 6792405), (15, 5433924), (18, 4528270), (19, 4289940), (20, 4075443), (30, 2716962), (36, 2264135), (38, 2144970), (45, 1811308), (57, 1429980), (60, 1358481), (76, 1072485), (90, 905654), (95, 857988), (114, 714990), (171, 476660), (180, 452827), (190, 428994), (228, 357495), (285, 285996), (342, 238330), (380, 214497), (570, 142998), (684, 119165), (855, 95332), (1140, 71499), (1710, 47666), (3420, 23833)]