19788160

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{631}}^1$

素因数の和:664

約数の個数: 96

約数和(自身を含む): 55116720

約数和(自身を除く): 35328560

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, 392, 448, 490, 560, 631, 640, 784, 896, 980, 1120, 1262, 1568, 1960, 2240, 2524, 3136, 3155, 3920, 4417, 4480, 5048, 6272, 6310, 7840, 8834, 10096, 12620, 15680, 17668, 20192, 22085, 25240, 30919, 31360, 35336, 40384, 44170, 50480, 61838, 70672, 80768, 88340, 100960, 123676, 141344, 154595, 176680, 201920, 247352, 282688, 309190, 353360, 403840, 494704, 565376, 618380, 706720, 989408, 1236760, 1413440, 1978816, 2473520, 2826880, 3957632, 4947040, 9894080, 19788160]

約数ペア:

[(1, 19788160), (2, 9894080), (4, 4947040), (5, 3957632), (7, 2826880), (8, 2473520), (10, 1978816), (14, 1413440), (16, 1236760), (20, 989408), (28, 706720), (32, 618380), (35, 565376), (40, 494704), (49, 403840), (56, 353360), (64, 309190), (70, 282688), (80, 247352), (98, 201920), (112, 176680), (128, 154595), (140, 141344), (160, 123676), (196, 100960), (224, 88340), (245, 80768), (280, 70672), (320, 61838), (392, 50480), (448, 44170), (490, 40384), (560, 35336), (631, 31360), (640, 30919), (784, 25240), (896, 22085), (980, 20192), (1120, 17668), (1262, 15680), (1568, 12620), (1960, 10096), (2240, 8834), (2524, 7840), (3136, 6310), (3155, 6272), (3920, 5048), (4417, 4480)]