12993920

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 31579200

約数和(自身を除く): 18585280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 257, 316, 320, 395, 514, 632, 640, 790, 1028, 1264, 1285, 1580, 2056, 2528, 2570, 3160, 4112, 5056, 5140, 6320, 8224, 10112, 10280, 12640, 16448, 20303, 20560, 25280, 32896, 40606, 41120, 50560, 81212, 82240, 101515, 162424, 164480, 203030, 324848, 406060, 649696, 812120, 1299392, 1624240, 2598784, 3248480, 6496960, 12993920]

約数ペア:

[(1, 12993920), (2, 6496960), (4, 3248480), (5, 2598784), (8, 1624240), (10, 1299392), (16, 812120), (20, 649696), (32, 406060), (40, 324848), (64, 203030), (79, 164480), (80, 162424), (128, 101515), (158, 82240), (160, 81212), (257, 50560), (316, 41120), (320, 40606), (395, 32896), (514, 25280), (632, 20560), (640, 20303), (790, 16448), (1028, 12640), (1264, 10280), (1285, 10112), (1580, 8224), (2056, 6320), (2528, 5140), (2570, 5056), (3160, 4112)]