20689440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43103}}^1$

素因数の和:43121

約数の個数: 48

約数和(自身を含む): 65173248

約数和(自身を除く): 44483808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43103, 86206, 129309, 172412, 215515, 258618, 344824, 431030, 517236, 646545, 689648, 862060, 1034472, 1293090, 1379296, 1724120, 2068944, 2586180, 3448240, 4137888, 5172360, 6896480, 10344720, 20689440]

約数ペア:

[(1, 20689440), (2, 10344720), (3, 6896480), (4, 5172360), (5, 4137888), (6, 3448240), (8, 2586180), (10, 2068944), (12, 1724120), (15, 1379296), (16, 1293090), (20, 1034472), (24, 862060), (30, 689648), (32, 646545), (40, 517236), (48, 431030), (60, 344824), (80, 258618), (96, 215515), (120, 172412), (160, 129309), (240, 86206), (480, 43103)]