1291440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{5381}}^1$

素因数の和:5397

約数の個数: 40

約数和(自身を含む): 4004208

約数和(自身を除く): 2712768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 5381, 10762, 16143, 21524, 26905, 32286, 43048, 53810, 64572, 80715, 86096, 107620, 129144, 161430, 215240, 258288, 322860, 430480, 645720, 1291440]

約数ペア:

[(1, 1291440), (2, 645720), (3, 430480), (4, 322860), (5, 258288), (6, 215240), (8, 161430), (10, 129144), (12, 107620), (15, 86096), (16, 80715), (20, 64572), (24, 53810), (30, 43048), (40, 32286), (48, 26905), (60, 21524), (80, 16143), (120, 10762), (240, 5381)]