7282840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1117}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 16501680

約数和(自身を除く): 9218840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1117, 1304, 1630, 2234, 3260, 4468, 5585, 6520, 8936, 11170, 22340, 44680, 182071, 364142, 728284, 910355, 1456568, 1820710, 3641420, 7282840]

約数ペア:

[(1, 7282840), (2, 3641420), (4, 1820710), (5, 1456568), (8, 910355), (10, 728284), (20, 364142), (40, 182071), (163, 44680), (326, 22340), (652, 11170), (815, 8936), (1117, 6520), (1304, 5585), (1630, 4468), (2234, 3260)]