1238261440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{297659}}^1$

素因数の和:297689

約数の個数: 56

約数和(自身を含む): 3175436880

約数和(自身を除く): 1937175440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 297659, 595318, 1190636, 1488295, 2381272, 2976590, 3869567, 4762544, 5953180, 7739134, 9525088, 11906360, 15478268, 19050176, 19347835, 23812720, 30956536, 38695670, 47625440, 61913072, 77391340, 95250880, 123826144, 154782680, 247652288, 309565360, 619130720, 1238261440]

約数ペア:

[(1, 1238261440), (2, 619130720), (4, 309565360), (5, 247652288), (8, 154782680), (10, 123826144), (13, 95250880), (16, 77391340), (20, 61913072), (26, 47625440), (32, 38695670), (40, 30956536), (52, 23812720), (64, 19347835), (65, 19050176), (80, 15478268), (104, 11906360), (130, 9525088), (160, 7739134), (208, 5953180), (260, 4762544), (320, 3869567), (416, 2976590), (520, 2381272), (832, 1488295), (1040, 1190636), (2080, 595318), (4160, 297659)]