75554440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 195148800

約数和(自身を除く): 119594360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 43, 52, 62, 65, 86, 104, 109, 124, 130, 155, 172, 215, 218, 248, 260, 310, 344, 403, 430, 436, 520, 545, 559, 620, 806, 860, 872, 1090, 1118, 1240, 1333, 1417, 1612, 1720, 2015, 2180, 2236, 2666, 2795, 2834, 3224, 3379, 4030, 4360, 4472, 4687, 5332, 5590, 5668, 6665, 6758, 7085, 8060, 9374, 10664, 11180, 11336, 13330, 13516, 14170, 16120, 16895, 17329, 18748, 22360, 23435, 26660, 27032, 28340, 33790, 34658, 37496, 43927, 46870, 53320, 56680, 60931, 67580, 69316, 86645, 87854, 93740, 121862, 135160, 138632, 145297, 173290, 175708, 187480, 219635, 243724, 290594, 304655, 346580, 351416, 439270, 487448, 581188, 609310, 693160, 726485, 878540, 1162376, 1218620, 1452970, 1757080, 1888861, 2437240, 2905940, 3777722, 5811880, 7555444, 9444305, 15110888, 18888610, 37777220, 75554440]

約数ペア:

[(1, 75554440), (2, 37777220), (4, 18888610), (5, 15110888), (8, 9444305), (10, 7555444), (13, 5811880), (20, 3777722), (26, 2905940), (31, 2437240), (40, 1888861), (43, 1757080), (52, 1452970), (62, 1218620), (65, 1162376), (86, 878540), (104, 726485), (109, 693160), (124, 609310), (130, 581188), (155, 487448), (172, 439270), (215, 351416), (218, 346580), (248, 304655), (260, 290594), (310, 243724), (344, 219635), (403, 187480), (430, 175708), (436, 173290), (520, 145297), (545, 138632), (559, 135160), (620, 121862), (806, 93740), (860, 87854), (872, 86645), (1090, 69316), (1118, 67580), (1240, 60931), (1333, 56680), (1417, 53320), (1612, 46870), (1720, 43927), (2015, 37496), (2180, 34658), (2236, 33790), (2666, 28340), (2795, 27032), (2834, 26660), (3224, 23435), (3379, 22360), (4030, 18748), (4360, 17329), (4472, 16895), (4687, 16120), (5332, 14170), (5590, 13516), (5668, 13330), (6665, 11336), (6758, 11180), (7085, 10664), (8060, 9374)]