20637216

素因数分解:

$2^5\times 3^2\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:694

約数の個数: 72

約数和(自身を含む): 59243184

約数和(自身を除く): 38605968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 131, 144, 262, 288, 393, 524, 547, 786, 1048, 1094, 1179, 1572, 1641, 2096, 2188, 2358, 3144, 3282, 4192, 4376, 4716, 4923, 6288, 6564, 8752, 9432, 9846, 12576, 13128, 17504, 18864, 19692, 26256, 37728, 39384, 52512, 71657, 78768, 143314, 157536, 214971, 286628, 429942, 573256, 644913, 859884, 1146512, 1289826, 1719768, 2293024, 2579652, 3439536, 5159304, 6879072, 10318608, 20637216]

約数ペア:

[(1, 20637216), (2, 10318608), (3, 6879072), (4, 5159304), (6, 3439536), (8, 2579652), (9, 2293024), (12, 1719768), (16, 1289826), (18, 1146512), (24, 859884), (32, 644913), (36, 573256), (48, 429942), (72, 286628), (96, 214971), (131, 157536), (144, 143314), (262, 78768), (288, 71657), (393, 52512), (524, 39384), (547, 37728), (786, 26256), (1048, 19692), (1094, 18864), (1179, 17504), (1572, 13128), (1641, 12576), (2096, 9846), (2188, 9432), (2358, 8752), (3144, 6564), (3282, 6288), (4192, 4923), (4376, 4716)]