826383920

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:802

約数の個数: 80

約数和(自身を含む): 1952256000

約数和(自身を除く): 1125872080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 163, 254, 326, 499, 508, 635, 652, 815, 998, 1016, 1270, 1304, 1630, 1996, 2032, 2495, 2540, 2608, 3260, 3992, 4990, 5080, 6520, 7984, 9980, 10160, 13040, 19960, 20701, 39920, 41402, 63373, 81337, 82804, 103505, 126746, 162674, 165608, 207010, 253492, 316865, 325348, 331216, 406685, 414020, 506984, 633730, 650696, 813370, 828040, 1013968, 1267460, 1301392, 1626740, 1656080, 2534920, 3253480, 5069840, 6506960, 10329799, 20659598, 41319196, 51648995, 82638392, 103297990, 165276784, 206595980, 413191960, 826383920]

約数ペア:

[(1, 826383920), (2, 413191960), (4, 206595980), (5, 165276784), (8, 103297990), (10, 82638392), (16, 51648995), (20, 41319196), (40, 20659598), (80, 10329799), (127, 6506960), (163, 5069840), (254, 3253480), (326, 2534920), (499, 1656080), (508, 1626740), (635, 1301392), (652, 1267460), (815, 1013968), (998, 828040), (1016, 813370), (1270, 650696), (1304, 633730), (1630, 506984), (1996, 414020), (2032, 406685), (2495, 331216), (2540, 325348), (2608, 316865), (3260, 253492), (3992, 207010), (4990, 165608), (5080, 162674), (6520, 126746), (7984, 103505), (9980, 82804), (10160, 81337), (13040, 63373), (19960, 41402), (20701, 39920)]