28437640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1319}}^1$

素因数の和:1355

約数の個数: 96

約数和(自身を含む): 81259200

約数和(自身を除く): 52821560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 980, 1078, 1319, 1540, 1960, 2156, 2638, 2695, 3080, 4312, 5276, 5390, 6595, 9233, 10552, 10780, 13190, 14509, 18466, 21560, 26380, 29018, 36932, 46165, 52760, 58036, 64631, 72545, 73864, 92330, 101563, 116072, 129262, 145090, 184660, 203126, 258524, 290180, 323155, 369320, 406252, 507815, 517048, 580360, 646310, 710941, 812504, 1015630, 1292620, 1421882, 2031260, 2585240, 2843764, 3554705, 4062520, 5687528, 7109410, 14218820, 28437640]

約数ペア:

[(1, 28437640), (2, 14218820), (4, 7109410), (5, 5687528), (7, 4062520), (8, 3554705), (10, 2843764), (11, 2585240), (14, 2031260), (20, 1421882), (22, 1292620), (28, 1015630), (35, 812504), (40, 710941), (44, 646310), (49, 580360), (55, 517048), (56, 507815), (70, 406252), (77, 369320), (88, 323155), (98, 290180), (110, 258524), (140, 203126), (154, 184660), (196, 145090), (220, 129262), (245, 116072), (280, 101563), (308, 92330), (385, 73864), (392, 72545), (440, 64631), (490, 58036), (539, 52760), (616, 46165), (770, 36932), (980, 29018), (1078, 26380), (1319, 21560), (1540, 18466), (1960, 14509), (2156, 13190), (2638, 10780), (2695, 10552), (3080, 9233), (4312, 6595), (5276, 5390)]