20328552

素因数分解:

$2^3\times 3^2\times {\mathrm{349}}^1\times {\mathrm{809}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 55282500

約数和(自身を除く): 34953948

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 349, 698, 809, 1047, 1396, 1618, 2094, 2427, 2792, 3141, 3236, 4188, 4854, 6282, 6472, 7281, 8376, 9708, 12564, 14562, 19416, 25128, 29124, 58248, 282341, 564682, 847023, 1129364, 1694046, 2258728, 2541069, 3388092, 5082138, 6776184, 10164276, 20328552]

約数ペア:

[(1, 20328552), (2, 10164276), (3, 6776184), (4, 5082138), (6, 3388092), (8, 2541069), (9, 2258728), (12, 1694046), (18, 1129364), (24, 847023), (36, 564682), (72, 282341), (349, 58248), (698, 29124), (809, 25128), (1047, 19416), (1396, 14562), (1618, 12564), (2094, 9708), (2427, 8376), (2792, 7281), (3141, 6472), (3236, 6282), (4188, 4854)]