80186620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1303}}^1$

素因数の和:1510

約数の個数: 48

約数和(自身を含む): 179419968

約数和(自身を除く): 99233348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 340, 362, 724, 905, 1303, 1810, 2606, 3077, 3620, 5212, 6154, 6515, 12308, 13030, 15385, 22151, 26060, 30770, 44302, 61540, 88604, 110755, 221510, 235843, 443020, 471686, 943372, 1179215, 2358430, 4009331, 4716860, 8018662, 16037324, 20046655, 40093310, 80186620]

約数ペア:

[(1, 80186620), (2, 40093310), (4, 20046655), (5, 16037324), (10, 8018662), (17, 4716860), (20, 4009331), (34, 2358430), (68, 1179215), (85, 943372), (170, 471686), (181, 443020), (340, 235843), (362, 221510), (724, 110755), (905, 88604), (1303, 61540), (1810, 44302), (2606, 30770), (3077, 26060), (3620, 22151), (5212, 15385), (6154, 13030), (6515, 12308)]