20864480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1433}}^1$

素因数の和:1468

約数の個数: 96

約数和(自身を含む): 60709824

約数和(自身を除く): 39845344

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1433, 1456, 1820, 2080, 2866, 2912, 3640, 5732, 7165, 7280, 10031, 11464, 14330, 14560, 18629, 20062, 22928, 28660, 37258, 40124, 45856, 50155, 57320, 74516, 80248, 93145, 100310, 114640, 130403, 149032, 160496, 186290, 200620, 229280, 260806, 298064, 320992, 372580, 401240, 521612, 596128, 652015, 745160, 802480, 1043224, 1304030, 1490320, 1604960, 2086448, 2608060, 2980640, 4172896, 5216120, 10432240, 20864480]

約数ペア:

[(1, 20864480), (2, 10432240), (4, 5216120), (5, 4172896), (7, 2980640), (8, 2608060), (10, 2086448), (13, 1604960), (14, 1490320), (16, 1304030), (20, 1043224), (26, 802480), (28, 745160), (32, 652015), (35, 596128), (40, 521612), (52, 401240), (56, 372580), (65, 320992), (70, 298064), (80, 260806), (91, 229280), (104, 200620), (112, 186290), (130, 160496), (140, 149032), (160, 130403), (182, 114640), (208, 100310), (224, 93145), (260, 80248), (280, 74516), (364, 57320), (416, 50155), (455, 45856), (520, 40124), (560, 37258), (728, 28660), (910, 22928), (1040, 20062), (1120, 18629), (1433, 14560), (1456, 14330), (1820, 11464), (2080, 10031), (2866, 7280), (2912, 7165), (3640, 5732)]