79181820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{443}}^1$

素因数の和:792

約数の個数: 96

約数和(自身を含む): 247645440

約数和(自身を除く): 168463620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 331, 443, 540, 662, 886, 993, 1324, 1329, 1655, 1772, 1986, 2215, 2658, 2979, 3310, 3972, 3987, 4430, 4965, 5316, 5958, 6620, 6645, 7974, 8860, 8937, 9930, 11916, 11961, 13290, 14895, 15948, 17874, 19860, 19935, 23922, 26580, 29790, 35748, 39870, 44685, 47844, 59580, 59805, 79740, 89370, 119610, 146633, 178740, 239220, 293266, 439899, 586532, 733165, 879798, 1319697, 1466330, 1759596, 2199495, 2639394, 2932660, 3959091, 4398990, 5278788, 6598485, 7918182, 8797980, 13196970, 15836364, 19795455, 26393940, 39590910, 79181820]

約数ペア:

[(1, 79181820), (2, 39590910), (3, 26393940), (4, 19795455), (5, 15836364), (6, 13196970), (9, 8797980), (10, 7918182), (12, 6598485), (15, 5278788), (18, 4398990), (20, 3959091), (27, 2932660), (30, 2639394), (36, 2199495), (45, 1759596), (54, 1466330), (60, 1319697), (90, 879798), (108, 733165), (135, 586532), (180, 439899), (270, 293266), (331, 239220), (443, 178740), (540, 146633), (662, 119610), (886, 89370), (993, 79740), (1324, 59805), (1329, 59580), (1655, 47844), (1772, 44685), (1986, 39870), (2215, 35748), (2658, 29790), (2979, 26580), (3310, 23922), (3972, 19935), (3987, 19860), (4430, 17874), (4965, 15948), (5316, 14895), (5958, 13290), (6620, 11961), (6645, 11916), (7974, 9930), (8860, 8937)]