257078040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2383}}^1$

素因数の和:2457

約数の個数: 128

約数和(自身を含む): 823910400

約数和(自身を除く): 566832360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 31, 40, 58, 60, 62, 87, 93, 116, 120, 124, 145, 155, 174, 186, 232, 248, 290, 310, 348, 372, 435, 465, 580, 620, 696, 744, 870, 899, 930, 1160, 1240, 1740, 1798, 1860, 2383, 2697, 3480, 3596, 3720, 4495, 4766, 5394, 7149, 7192, 8990, 9532, 10788, 11915, 13485, 14298, 17980, 19064, 21576, 23830, 26970, 28596, 35745, 35960, 47660, 53940, 57192, 69107, 71490, 73873, 95320, 107880, 138214, 142980, 147746, 207321, 221619, 276428, 285960, 295492, 345535, 369365, 414642, 443238, 552856, 590984, 691070, 738730, 829284, 886476, 1036605, 1108095, 1382140, 1477460, 1658568, 1772952, 2073210, 2142317, 2216190, 2764280, 2954920, 4146420, 4284634, 4432380, 6426951, 8292840, 8569268, 8864760, 10711585, 12853902, 17138536, 21423170, 25707804, 32134755, 42846340, 51415608, 64269510, 85692680, 128539020, 257078040]

約数ペア:

[(1, 257078040), (2, 128539020), (3, 85692680), (4, 64269510), (5, 51415608), (6, 42846340), (8, 32134755), (10, 25707804), (12, 21423170), (15, 17138536), (20, 12853902), (24, 10711585), (29, 8864760), (30, 8569268), (31, 8292840), (40, 6426951), (58, 4432380), (60, 4284634), (62, 4146420), (87, 2954920), (93, 2764280), (116, 2216190), (120, 2142317), (124, 2073210), (145, 1772952), (155, 1658568), (174, 1477460), (186, 1382140), (232, 1108095), (248, 1036605), (290, 886476), (310, 829284), (348, 738730), (372, 691070), (435, 590984), (465, 552856), (580, 443238), (620, 414642), (696, 369365), (744, 345535), (870, 295492), (899, 285960), (930, 276428), (1160, 221619), (1240, 207321), (1740, 147746), (1798, 142980), (1860, 138214), (2383, 107880), (2697, 95320), (3480, 73873), (3596, 71490), (3720, 69107), (4495, 57192), (4766, 53940), (5394, 47660), (7149, 35960), (7192, 35745), (8990, 28596), (9532, 26970), (10788, 23830), (11915, 21576), (13485, 19064), (14298, 17980)]