90474660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2777}}^1$

素因数の和:2973

約数の個数: 72

約数和(自身を含む): 276055416

約数和(自身を除く): 185580756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 2777, 3258, 3620, 5430, 5554, 6516, 8145, 8331, 10860, 11108, 13885, 16290, 16662, 24993, 27770, 32580, 33324, 41655, 49986, 55540, 83310, 99972, 124965, 166620, 249930, 499860, 502637, 1005274, 1507911, 2010548, 2513185, 3015822, 4523733, 5026370, 6031644, 7539555, 9047466, 10052740, 15079110, 18094932, 22618665, 30158220, 45237330, 90474660]

約数ペア:

[(1, 90474660), (2, 45237330), (3, 30158220), (4, 22618665), (5, 18094932), (6, 15079110), (9, 10052740), (10, 9047466), (12, 7539555), (15, 6031644), (18, 5026370), (20, 4523733), (30, 3015822), (36, 2513185), (45, 2010548), (60, 1507911), (90, 1005274), (180, 502637), (181, 499860), (362, 249930), (543, 166620), (724, 124965), (905, 99972), (1086, 83310), (1629, 55540), (1810, 49986), (2172, 41655), (2715, 33324), (2777, 32580), (3258, 27770), (3620, 24993), (5430, 16662), (5554, 16290), (6516, 13885), (8145, 11108), (8331, 10860)]