25640720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:269

約数の個数: 120

約数和(自身を含む): 71923968

約数和(自身を除く): 46283248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 211, 217, 245, 248, 280, 310, 392, 422, 434, 490, 496, 560, 620, 784, 844, 868, 980, 1055, 1085, 1240, 1477, 1519, 1688, 1736, 1960, 2110, 2170, 2480, 2954, 3038, 3376, 3472, 3920, 4220, 4340, 5908, 6076, 6541, 7385, 7595, 8440, 8680, 10339, 11816, 12152, 13082, 14770, 15190, 16880, 17360, 20678, 23632, 24304, 26164, 29540, 30380, 32705, 41356, 45787, 51695, 52328, 59080, 60760, 65410, 82712, 91574, 103390, 104656, 118160, 121520, 130820, 165424, 183148, 206780, 228935, 261640, 320509, 366296, 413560, 457870, 523280, 641018, 732592, 827120, 915740, 1282036, 1602545, 1831480, 2564072, 3205090, 3662960, 5128144, 6410180, 12820360, 25640720]

約数ペア:

[(1, 25640720), (2, 12820360), (4, 6410180), (5, 5128144), (7, 3662960), (8, 3205090), (10, 2564072), (14, 1831480), (16, 1602545), (20, 1282036), (28, 915740), (31, 827120), (35, 732592), (40, 641018), (49, 523280), (56, 457870), (62, 413560), (70, 366296), (80, 320509), (98, 261640), (112, 228935), (124, 206780), (140, 183148), (155, 165424), (196, 130820), (211, 121520), (217, 118160), (245, 104656), (248, 103390), (280, 91574), (310, 82712), (392, 65410), (422, 60760), (434, 59080), (490, 52328), (496, 51695), (560, 45787), (620, 41356), (784, 32705), (844, 30380), (868, 29540), (980, 26164), (1055, 24304), (1085, 23632), (1240, 20678), (1477, 17360), (1519, 16880), (1688, 15190), (1736, 14770), (1960, 13082), (2110, 12152), (2170, 11816), (2480, 10339), (2954, 8680), (3038, 8440), (3376, 7595), (3472, 7385), (3920, 6541), (4220, 6076), (4340, 5908)]