81415840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{277}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 211849344

約数和(自身を除く): 130433504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 167, 176, 220, 277, 334, 352, 440, 554, 668, 835, 880, 1108, 1336, 1385, 1670, 1760, 1837, 2216, 2672, 2770, 3047, 3340, 3674, 4432, 5344, 5540, 6094, 6680, 7348, 8864, 9185, 11080, 12188, 13360, 14696, 15235, 18370, 22160, 24376, 26720, 29392, 30470, 36740, 44320, 46259, 48752, 58784, 60940, 73480, 92518, 97504, 121880, 146960, 185036, 231295, 243760, 293920, 370072, 462590, 487520, 508849, 740144, 925180, 1017698, 1480288, 1850360, 2035396, 2544245, 3700720, 4070792, 5088490, 7401440, 8141584, 10176980, 16283168, 20353960, 40707920, 81415840]

約数ペア:

[(1, 81415840), (2, 40707920), (4, 20353960), (5, 16283168), (8, 10176980), (10, 8141584), (11, 7401440), (16, 5088490), (20, 4070792), (22, 3700720), (32, 2544245), (40, 2035396), (44, 1850360), (55, 1480288), (80, 1017698), (88, 925180), (110, 740144), (160, 508849), (167, 487520), (176, 462590), (220, 370072), (277, 293920), (334, 243760), (352, 231295), (440, 185036), (554, 146960), (668, 121880), (835, 97504), (880, 92518), (1108, 73480), (1336, 60940), (1385, 58784), (1670, 48752), (1760, 46259), (1837, 44320), (2216, 36740), (2672, 30470), (2770, 29392), (3047, 26720), (3340, 24376), (3674, 22160), (4432, 18370), (5344, 15235), (5540, 14696), (6094, 13360), (6680, 12188), (7348, 11080), (8864, 9185)]