256737720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2139481}}^1$

素因数の和:2139495

約数の個数: 32

約数和(自身を含む): 770213520

約数和(自身を除く): 513475800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2139481, 4278962, 6418443, 8557924, 10697405, 12836886, 17115848, 21394810, 25673772, 32092215, 42789620, 51347544, 64184430, 85579240, 128368860, 256737720]

約数ペア:

[(1, 256737720), (2, 128368860), (3, 85579240), (4, 64184430), (5, 51347544), (6, 42789620), (8, 32092215), (10, 25673772), (12, 21394810), (15, 17115848), (20, 12836886), (24, 10697405), (30, 8557924), (40, 6418443), (60, 4278962), (120, 2139481)]