1990782640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{1103}}^1$

素因数の和:1427

約数の個数: 160

約数和(自身を含む): 5795629056

約数和(自身を除く): 3804846416

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 293, 308, 385, 440, 560, 586, 616, 770, 880, 1103, 1172, 1232, 1465, 1540, 2051, 2206, 2344, 2930, 3080, 3223, 4102, 4412, 4688, 5515, 5860, 6160, 6446, 7721, 8204, 8824, 10255, 11030, 11720, 12133, 12892, 15442, 16115, 16408, 17648, 20510, 22060, 22561, 23440, 24266, 25784, 30884, 32230, 32816, 38605, 41020, 44120, 45122, 48532, 51568, 60665, 61768, 64460, 77210, 82040, 84931, 88240, 90244, 97064, 112805, 121330, 123536, 128920, 154420, 164080, 169862, 180488, 194128, 225610, 242660, 257840, 308840, 323179, 339724, 360976, 424655, 451220, 485320, 617680, 646358, 679448, 849310, 902440, 970640, 1292716, 1358896, 1615895, 1698620, 1804880, 2262253, 2585432, 3231790, 3397240, 3554969, 4524506, 5170864, 6463580, 6794480, 7109938, 9049012, 11311265, 12927160, 14219876, 17774845, 18098024, 22622530, 24884783, 25854320, 28439752, 35549690, 36196048, 45245060, 49769566, 56879504, 71099380, 90490120, 99539132, 124423915, 142198760, 180980240, 199078264, 248847830, 284397520, 398156528, 497695660, 995391320, 1990782640]

約数ペア:

[(1, 1990782640), (2, 995391320), (4, 497695660), (5, 398156528), (7, 284397520), (8, 248847830), (10, 199078264), (11, 180980240), (14, 142198760), (16, 124423915), (20, 99539132), (22, 90490120), (28, 71099380), (35, 56879504), (40, 49769566), (44, 45245060), (55, 36196048), (56, 35549690), (70, 28439752), (77, 25854320), (80, 24884783), (88, 22622530), (110, 18098024), (112, 17774845), (140, 14219876), (154, 12927160), (176, 11311265), (220, 9049012), (280, 7109938), (293, 6794480), (308, 6463580), (385, 5170864), (440, 4524506), (560, 3554969), (586, 3397240), (616, 3231790), (770, 2585432), (880, 2262253), (1103, 1804880), (1172, 1698620), (1232, 1615895), (1465, 1358896), (1540, 1292716), (2051, 970640), (2206, 902440), (2344, 849310), (2930, 679448), (3080, 646358), (3223, 617680), (4102, 485320), (4412, 451220), (4688, 424655), (5515, 360976), (5860, 339724), (6160, 323179), (6446, 308840), (7721, 257840), (8204, 242660), (8824, 225610), (10255, 194128), (11030, 180488), (11720, 169862), (12133, 164080), (12892, 154420), (15442, 128920), (16115, 123536), (16408, 121330), (17648, 112805), (20510, 97064), (22060, 90244), (22561, 88240), (23440, 84931), (24266, 82040), (25784, 77210), (30884, 64460), (32230, 61768), (32816, 60665), (38605, 51568), (41020, 48532), (44120, 45122)]