20431380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1487}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 57496320

約数和(自身を除く): 37064940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 229, 458, 687, 916, 1145, 1374, 1487, 2290, 2748, 2974, 3435, 4461, 4580, 5948, 6870, 7435, 8922, 13740, 14870, 17844, 22305, 29740, 44610, 89220, 340523, 681046, 1021569, 1362092, 1702615, 2043138, 3405230, 4086276, 5107845, 6810460, 10215690, 20431380]

約数ペア:

[(1, 20431380), (2, 10215690), (3, 6810460), (4, 5107845), (5, 4086276), (6, 3405230), (10, 2043138), (12, 1702615), (15, 1362092), (20, 1021569), (30, 681046), (60, 340523), (229, 89220), (458, 44610), (687, 29740), (916, 22305), (1145, 17844), (1374, 14870), (1487, 13740), (2290, 8922), (2748, 7435), (2974, 6870), (3435, 5948), (4461, 4580)]