157648640

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 406183680

約数和(自身を除く): 248535040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 62, 64, 80, 116, 124, 128, 137, 145, 155, 160, 232, 248, 256, 274, 290, 310, 320, 464, 496, 548, 580, 620, 640, 685, 899, 928, 992, 1096, 1160, 1240, 1280, 1370, 1798, 1856, 1984, 2192, 2320, 2480, 2740, 3596, 3712, 3968, 3973, 4247, 4384, 4495, 4640, 4960, 5480, 7192, 7424, 7936, 7946, 8494, 8768, 8990, 9280, 9920, 10960, 14384, 15892, 16988, 17536, 17980, 18560, 19840, 19865, 21235, 21920, 28768, 31784, 33976, 35072, 35960, 37120, 39680, 39730, 42470, 43840, 57536, 63568, 67952, 71920, 79460, 84940, 87680, 115072, 123163, 127136, 135904, 143840, 158920, 169880, 175360, 230144, 246326, 254272, 271808, 287680, 317840, 339760, 492652, 508544, 543616, 575360, 615815, 635680, 679520, 985304, 1017088, 1087232, 1150720, 1231630, 1271360, 1359040, 1970608, 2463260, 2542720, 2718080, 3941216, 4926520, 5085440, 5436160, 7882432, 9853040, 15764864, 19706080, 31529728, 39412160, 78824320, 157648640]

約数ペア:

[(1, 157648640), (2, 78824320), (4, 39412160), (5, 31529728), (8, 19706080), (10, 15764864), (16, 9853040), (20, 7882432), (29, 5436160), (31, 5085440), (32, 4926520), (40, 3941216), (58, 2718080), (62, 2542720), (64, 2463260), (80, 1970608), (116, 1359040), (124, 1271360), (128, 1231630), (137, 1150720), (145, 1087232), (155, 1017088), (160, 985304), (232, 679520), (248, 635680), (256, 615815), (274, 575360), (290, 543616), (310, 508544), (320, 492652), (464, 339760), (496, 317840), (548, 287680), (580, 271808), (620, 254272), (640, 246326), (685, 230144), (899, 175360), (928, 169880), (992, 158920), (1096, 143840), (1160, 135904), (1240, 127136), (1280, 123163), (1370, 115072), (1798, 87680), (1856, 84940), (1984, 79460), (2192, 71920), (2320, 67952), (2480, 63568), (2740, 57536), (3596, 43840), (3712, 42470), (3968, 39730), (3973, 39680), (4247, 37120), (4384, 35960), (4495, 35072), (4640, 33976), (4960, 31784), (5480, 28768), (7192, 21920), (7424, 21235), (7936, 19865), (7946, 19840), (8494, 18560), (8768, 17980), (8990, 17536), (9280, 16988), (9920, 15892), (10960, 14384)]