81963540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{455353}}^1$

素因数の和:455368

約数の個数: 36

約数和(自身を含む): 248623284

約数和(自身を除く): 166659744

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 455353, 910706, 1366059, 1821412, 2276765, 2732118, 4098177, 4553530, 5464236, 6830295, 8196354, 9107060, 13660590, 16392708, 20490885, 27321180, 40981770, 81963540]

約数ペア:

[(1, 81963540), (2, 40981770), (3, 27321180), (4, 20490885), (5, 16392708), (6, 13660590), (9, 9107060), (10, 8196354), (12, 6830295), (15, 5464236), (18, 4553530), (20, 4098177), (30, 2732118), (36, 2276765), (45, 1821412), (60, 1366059), (90, 910706), (180, 455353)]