6480

素因数分解:

$2^4\times 3^4\times 5^1$

素因数の和:25

約数の個数: 50

約数和(自身を含む): 22506

約数和(自身を除く): 16026

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480]

約数ペア:

[(1, 6480), (2, 3240), (3, 2160), (4, 1620), (5, 1296), (6, 1080), (8, 810), (9, 720), (10, 648), (12, 540), (15, 432), (16, 405), (18, 360), (20, 324), (24, 270), (27, 240), (30, 216), (36, 180), (40, 162), (45, 144), (48, 135), (54, 120), (60, 108), (72, 90), (80, 81)]