77689640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7499}}^1$

素因数の和:7554

約数の個数: 64

約数和(自身を含む): 205200000

約数和(自身を除く): 127510360

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, 2072, 2590, 5180, 7499, 10360, 14998, 29996, 37495, 52493, 59992, 74990, 104986, 149980, 209972, 262465, 277463, 299960, 419944, 524930, 554926, 1049860, 1109852, 1387315, 1942241, 2099720, 2219704, 2774630, 3884482, 5549260, 7768964, 9711205, 11098520, 15537928, 19422410, 38844820, 77689640]

約数ペア:

[(1, 77689640), (2, 38844820), (4, 19422410), (5, 15537928), (7, 11098520), (8, 9711205), (10, 7768964), (14, 5549260), (20, 3884482), (28, 2774630), (35, 2219704), (37, 2099720), (40, 1942241), (56, 1387315), (70, 1109852), (74, 1049860), (140, 554926), (148, 524930), (185, 419944), (259, 299960), (280, 277463), (296, 262465), (370, 209972), (518, 149980), (740, 104986), (1036, 74990), (1295, 59992), (1480, 52493), (2072, 37495), (2590, 29996), (5180, 14998), (7499, 10360)]