645169280

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{2939}}^1$

素因数の和:2979

約数の個数: 128

約数和(自身を含む): 1799280000

約数和(自身を除く): 1154110720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 343, 392, 448, 490, 560, 640, 686, 784, 896, 980, 1120, 1372, 1568, 1715, 1960, 2240, 2744, 2939, 3136, 3430, 3920, 4480, 5488, 5878, 6272, 6860, 7840, 10976, 11756, 13720, 14695, 15680, 20573, 21952, 23512, 27440, 29390, 31360, 41146, 43904, 47024, 54880, 58780, 82292, 94048, 102865, 109760, 117560, 144011, 164584, 188096, 205730, 219520, 235120, 288022, 329168, 376192, 411460, 470240, 576044, 658336, 720055, 822920, 940480, 1008077, 1152088, 1316672, 1440110, 1645840, 1880960, 2016154, 2304176, 2633344, 2880220, 3291680, 4032308, 4608352, 5040385, 5760440, 6583360, 8064616, 9216704, 10080770, 11520880, 13166720, 16129232, 18433408, 20161540, 23041760, 32258464, 40323080, 46083520, 64516928, 80646160, 92167040, 129033856, 161292320, 322584640, 645169280]

約数ペア:

[(1, 645169280), (2, 322584640), (4, 161292320), (5, 129033856), (7, 92167040), (8, 80646160), (10, 64516928), (14, 46083520), (16, 40323080), (20, 32258464), (28, 23041760), (32, 20161540), (35, 18433408), (40, 16129232), (49, 13166720), (56, 11520880), (64, 10080770), (70, 9216704), (80, 8064616), (98, 6583360), (112, 5760440), (128, 5040385), (140, 4608352), (160, 4032308), (196, 3291680), (224, 2880220), (245, 2633344), (280, 2304176), (320, 2016154), (343, 1880960), (392, 1645840), (448, 1440110), (490, 1316672), (560, 1152088), (640, 1008077), (686, 940480), (784, 822920), (896, 720055), (980, 658336), (1120, 576044), (1372, 470240), (1568, 411460), (1715, 376192), (1960, 329168), (2240, 288022), (2744, 235120), (2939, 219520), (3136, 205730), (3430, 188096), (3920, 164584), (4480, 144011), (5488, 117560), (5878, 109760), (6272, 102865), (6860, 94048), (7840, 82292), (10976, 58780), (11756, 54880), (13720, 47024), (14695, 43904), (15680, 41146), (20573, 31360), (21952, 29390), (23512, 27440)]