81810144

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21851}}^1$

素因数の和:21880

約数の個数: 72

約数和(自身を含む): 250555032

約数和(自身を除く): 168744888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 21851, 43702, 65553, 87404, 131106, 174808, 196659, 262212, 284063, 349616, 393318, 524424, 568126, 699232, 786636, 852189, 1048848, 1136252, 1573272, 1704378, 2097696, 2272504, 2556567, 3146544, 3408756, 4545008, 5113134, 6293088, 6817512, 9090016, 10226268, 13635024, 20452536, 27270048, 40905072, 81810144]

約数ペア:

[(1, 81810144), (2, 40905072), (3, 27270048), (4, 20452536), (6, 13635024), (8, 10226268), (9, 9090016), (12, 6817512), (13, 6293088), (16, 5113134), (18, 4545008), (24, 3408756), (26, 3146544), (32, 2556567), (36, 2272504), (39, 2097696), (48, 1704378), (52, 1573272), (72, 1136252), (78, 1048848), (96, 852189), (104, 786636), (117, 699232), (144, 568126), (156, 524424), (208, 393318), (234, 349616), (288, 284063), (312, 262212), (416, 196659), (468, 174808), (624, 131106), (936, 87404), (1248, 65553), (1872, 43702), (3744, 21851)]