81670040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120103}}^1$

素因数の和:120131

約数の個数: 32

約数和(自身を含む): 194568480

約数和(自身を除く): 112898440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 120103, 240206, 480412, 600515, 960824, 1201030, 2041751, 2402060, 4083502, 4804120, 8167004, 10208755, 16334008, 20417510, 40835020, 81670040]

約数ペア:

[(1, 81670040), (2, 40835020), (4, 20417510), (5, 16334008), (8, 10208755), (10, 8167004), (17, 4804120), (20, 4083502), (34, 2402060), (40, 2041751), (68, 1201030), (85, 960824), (136, 600515), (170, 480412), (340, 240206), (680, 120103)]