138940160

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 364240800

約数和(自身を除く): 225300640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 116, 128, 145, 152, 160, 190, 197, 232, 256, 290, 304, 320, 380, 394, 464, 551, 580, 608, 640, 760, 788, 928, 985, 1102, 1160, 1216, 1280, 1520, 1576, 1856, 1970, 2204, 2320, 2432, 2755, 3040, 3152, 3712, 3743, 3940, 4408, 4640, 4864, 5510, 5713, 6080, 6304, 7424, 7486, 7880, 8816, 9280, 11020, 11426, 12160, 12608, 14972, 15760, 17632, 18560, 18715, 22040, 22852, 24320, 25216, 28565, 29944, 31520, 35264, 37120, 37430, 44080, 45704, 50432, 57130, 59888, 63040, 70528, 74860, 88160, 91408, 108547, 114260, 119776, 126080, 141056, 149720, 176320, 182816, 217094, 228520, 239552, 252160, 299440, 352640, 365632, 434188, 457040, 479104, 542735, 598880, 705280, 731264, 868376, 914080, 958208, 1085470, 1197760, 1462528, 1736752, 1828160, 2170940, 2395520, 3473504, 3656320, 4341880, 4791040, 6947008, 7312640, 8683760, 13894016, 17367520, 27788032, 34735040, 69470080, 138940160]

約数ペア:

[(1, 138940160), (2, 69470080), (4, 34735040), (5, 27788032), (8, 17367520), (10, 13894016), (16, 8683760), (19, 7312640), (20, 6947008), (29, 4791040), (32, 4341880), (38, 3656320), (40, 3473504), (58, 2395520), (64, 2170940), (76, 1828160), (80, 1736752), (95, 1462528), (116, 1197760), (128, 1085470), (145, 958208), (152, 914080), (160, 868376), (190, 731264), (197, 705280), (232, 598880), (256, 542735), (290, 479104), (304, 457040), (320, 434188), (380, 365632), (394, 352640), (464, 299440), (551, 252160), (580, 239552), (608, 228520), (640, 217094), (760, 182816), (788, 176320), (928, 149720), (985, 141056), (1102, 126080), (1160, 119776), (1216, 114260), (1280, 108547), (1520, 91408), (1576, 88160), (1856, 74860), (1970, 70528), (2204, 63040), (2320, 59888), (2432, 57130), (2755, 50432), (3040, 45704), (3152, 44080), (3712, 37430), (3743, 37120), (3940, 35264), (4408, 31520), (4640, 29944), (4864, 28565), (5510, 25216), (5713, 24320), (6080, 22852), (6304, 22040), (7424, 18715), (7486, 18560), (7880, 17632), (8816, 15760), (9280, 14972), (11020, 12608), (11426, 12160)]