397431160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{211}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 1079947080

約数和(自身を除く): 682515920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 70, 98, 124, 140, 155, 196, 211, 217, 245, 248, 280, 310, 392, 422, 434, 490, 620, 844, 868, 961, 980, 1055, 1085, 1240, 1477, 1519, 1688, 1736, 1922, 1960, 2110, 2170, 2954, 3038, 3844, 4220, 4340, 4805, 5908, 6076, 6541, 6727, 7385, 7595, 7688, 8440, 8680, 9610, 10339, 11816, 12152, 13082, 13454, 14770, 15190, 19220, 20678, 26164, 26908, 29540, 30380, 32705, 33635, 38440, 41356, 45787, 47089, 51695, 52328, 53816, 59080, 60760, 65410, 67270, 82712, 91574, 94178, 103390, 130820, 134540, 183148, 188356, 202771, 206780, 228935, 235445, 261640, 269080, 320509, 366296, 376712, 405542, 413560, 457870, 470890, 641018, 811084, 915740, 941780, 1013855, 1282036, 1419397, 1602545, 1622168, 1831480, 1883560, 2027710, 2564072, 2838794, 3205090, 4055420, 5677588, 6410180, 7096985, 8110840, 9935779, 11355176, 12820360, 14193970, 19871558, 28387940, 39743116, 49678895, 56775880, 79486232, 99357790, 198715580, 397431160]

約数ペア:

[(1, 397431160), (2, 198715580), (4, 99357790), (5, 79486232), (7, 56775880), (8, 49678895), (10, 39743116), (14, 28387940), (20, 19871558), (28, 14193970), (31, 12820360), (35, 11355176), (40, 9935779), (49, 8110840), (56, 7096985), (62, 6410180), (70, 5677588), (98, 4055420), (124, 3205090), (140, 2838794), (155, 2564072), (196, 2027710), (211, 1883560), (217, 1831480), (245, 1622168), (248, 1602545), (280, 1419397), (310, 1282036), (392, 1013855), (422, 941780), (434, 915740), (490, 811084), (620, 641018), (844, 470890), (868, 457870), (961, 413560), (980, 405542), (1055, 376712), (1085, 366296), (1240, 320509), (1477, 269080), (1519, 261640), (1688, 235445), (1736, 228935), (1922, 206780), (1960, 202771), (2110, 188356), (2170, 183148), (2954, 134540), (3038, 130820), (3844, 103390), (4220, 94178), (4340, 91574), (4805, 82712), (5908, 67270), (6076, 65410), (6541, 60760), (6727, 59080), (7385, 53816), (7595, 52328), (7688, 51695), (8440, 47089), (8680, 45787), (9610, 41356), (10339, 38440), (11816, 33635), (12152, 32705), (13082, 30380), (13454, 29540), (14770, 26908), (15190, 26164), (19220, 20678)]