138606680

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^2\times {\mathrm{503}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 316295280

約数和(自身を除く): 177688600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 503, 664, 830, 1006, 1660, 2012, 2515, 3320, 4024, 5030, 6889, 10060, 13778, 20120, 27556, 34445, 41749, 55112, 68890, 83498, 137780, 166996, 208745, 275560, 333992, 417490, 834980, 1669960, 3465167, 6930334, 13860668, 17325835, 27721336, 34651670, 69303340, 138606680]

約数ペア:

[(1, 138606680), (2, 69303340), (4, 34651670), (5, 27721336), (8, 17325835), (10, 13860668), (20, 6930334), (40, 3465167), (83, 1669960), (166, 834980), (332, 417490), (415, 333992), (503, 275560), (664, 208745), (830, 166996), (1006, 137780), (1660, 83498), (2012, 68890), (2515, 55112), (3320, 41749), (4024, 34445), (5030, 27556), (6889, 20120), (10060, 13778)]