81543260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{359}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 176541120

約数和(自身を除く): 94997860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 277, 359, 410, 554, 718, 820, 1108, 1385, 1436, 1795, 2770, 3590, 5540, 7180, 11357, 14719, 22714, 29438, 45428, 56785, 58876, 73595, 99443, 113570, 147190, 198886, 227140, 294380, 397772, 497215, 994430, 1988860, 4077163, 8154326, 16308652, 20385815, 40771630, 81543260]

約数ペア:

[(1, 81543260), (2, 40771630), (4, 20385815), (5, 16308652), (10, 8154326), (20, 4077163), (41, 1988860), (82, 994430), (164, 497215), (205, 397772), (277, 294380), (359, 227140), (410, 198886), (554, 147190), (718, 113570), (820, 99443), (1108, 73595), (1385, 58876), (1436, 56785), (1795, 45428), (2770, 29438), (3590, 22714), (5540, 14719), (7180, 11357)]