1325575040

素因数分解:

$2^7\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4253}}^1$

素因数の和:4759

約数の個数: 64

約数和(自身を含む): 3176206560

約数和(自身を除く): 1850631520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 487, 640, 974, 1948, 2435, 3896, 4253, 4870, 7792, 8506, 9740, 15584, 17012, 19480, 21265, 31168, 34024, 38960, 42530, 62336, 68048, 77920, 85060, 136096, 155840, 170120, 272192, 311680, 340240, 544384, 680480, 1360960, 2071211, 2721920, 4142422, 8284844, 10356055, 16569688, 20712110, 33139376, 41424220, 66278752, 82848440, 132557504, 165696880, 265115008, 331393760, 662787520, 1325575040]

約数ペア:

[(1, 1325575040), (2, 662787520), (4, 331393760), (5, 265115008), (8, 165696880), (10, 132557504), (16, 82848440), (20, 66278752), (32, 41424220), (40, 33139376), (64, 20712110), (80, 16569688), (128, 10356055), (160, 8284844), (320, 4142422), (487, 2721920), (640, 2071211), (974, 1360960), (1948, 680480), (2435, 544384), (3896, 340240), (4253, 311680), (4870, 272192), (7792, 170120), (8506, 155840), (9740, 136096), (15584, 85060), (17012, 77920), (19480, 68048), (21265, 62336), (31168, 42530), (34024, 38960)]