12761720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2927}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 28987200

約数和(自身を除く): 16225480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 2927, 4360, 5854, 11708, 14635, 23416, 29270, 58540, 117080, 319043, 638086, 1276172, 1595215, 2552344, 3190430, 6380860, 12761720]

約数ペア:

[(1, 12761720), (2, 6380860), (4, 3190430), (5, 2552344), (8, 1595215), (10, 1276172), (20, 638086), (40, 319043), (109, 117080), (218, 58540), (436, 29270), (545, 23416), (872, 14635), (1090, 11708), (2180, 5854), (2927, 4360)]