81720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{227}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 266760

約数和(自身を除く): 185040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 227, 360, 454, 681, 908, 1135, 1362, 1816, 2043, 2270, 2724, 3405, 4086, 4540, 5448, 6810, 8172, 9080, 10215, 13620, 16344, 20430, 27240, 40860, 81720]

約数ペア:

[(1, 81720), (2, 40860), (3, 27240), (4, 20430), (5, 16344), (6, 13620), (8, 10215), (9, 9080), (10, 8172), (12, 6810), (15, 5448), (18, 4540), (20, 4086), (24, 3405), (30, 2724), (36, 2270), (40, 2043), (45, 1816), (60, 1362), (72, 1135), (90, 908), (120, 681), (180, 454), (227, 360)]