20833960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2011}}^1$

素因数の和:2066

約数の個数: 64

約数和(自身を含む): 55048320

約数和(自身を除く): 34214360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2011, 2072, 2590, 4022, 5180, 8044, 10055, 10360, 14077, 16088, 20110, 28154, 40220, 56308, 70385, 74407, 80440, 112616, 140770, 148814, 281540, 297628, 372035, 520849, 563080, 595256, 744070, 1041698, 1488140, 2083396, 2604245, 2976280, 4166792, 5208490, 10416980, 20833960]

約数ペア:

[(1, 20833960), (2, 10416980), (4, 5208490), (5, 4166792), (7, 2976280), (8, 2604245), (10, 2083396), (14, 1488140), (20, 1041698), (28, 744070), (35, 595256), (37, 563080), (40, 520849), (56, 372035), (70, 297628), (74, 281540), (140, 148814), (148, 140770), (185, 112616), (259, 80440), (280, 74407), (296, 70385), (370, 56308), (518, 40220), (740, 28154), (1036, 20110), (1295, 16088), (1480, 14077), (2011, 10360), (2072, 10055), (2590, 8044), (4022, 5180)]