15213720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{126781}}^1$

素因数の和:126795

約数の個数: 32

約数和(自身を含む): 45641520

約数和(自身を除く): 30427800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 126781, 253562, 380343, 507124, 633905, 760686, 1014248, 1267810, 1521372, 1901715, 2535620, 3042744, 3803430, 5071240, 7606860, 15213720]

約数ペア:

[(1, 15213720), (2, 7606860), (3, 5071240), (4, 3803430), (5, 3042744), (6, 2535620), (8, 1901715), (10, 1521372), (12, 1267810), (15, 1014248), (20, 760686), (24, 633905), (30, 507124), (40, 380343), (60, 253562), (120, 126781)]