9720

素因数分解:

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

素因数の和:26

約数の個数: 48

約数和(自身を含む): 32760

約数和(自身を除く): 23040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720]

約数ペア:

[(1, 9720), (2, 4860), (3, 3240), (4, 2430), (5, 1944), (6, 1620), (8, 1215), (9, 1080), (10, 972), (12, 810), (15, 648), (18, 540), (20, 486), (24, 405), (27, 360), (30, 324), (36, 270), (40, 243), (45, 216), (54, 180), (60, 162), (72, 135), (81, 120), (90, 108)]