257745720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2147881}}^1$

素因数の和:2147895

約数の個数: 32

約数和(自身を含む): 773237520

約数和(自身を除く): 515491800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2147881, 4295762, 6443643, 8591524, 10739405, 12887286, 17183048, 21478810, 25774572, 32218215, 42957620, 51549144, 64436430, 85915240, 128872860, 257745720]

約数ペア:

[(1, 257745720), (2, 128872860), (3, 85915240), (4, 64436430), (5, 51549144), (6, 42957620), (8, 32218215), (10, 25774572), (12, 21478810), (15, 17183048), (20, 12887286), (24, 10739405), (30, 8591524), (40, 6443643), (60, 4295762), (120, 2147881)]