668136338840

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{74903177}}^1$

素因数の和:74903411

約数の個数: 32

約数和(自身を含む): 1510048068480

約数和(自身を除く): 841911729640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 74903177, 149806354, 299612708, 374515885, 599225416, 749031770, 1498063540, 2996127080, 16703408471, 33406816942, 66813633884, 83517042355, 133627267768, 167034084710, 334068169420, 668136338840]

約数ペア:

[(1, 668136338840), (2, 334068169420), (4, 167034084710), (5, 133627267768), (8, 83517042355), (10, 66813633884), (20, 33406816942), (40, 16703408471), (223, 2996127080), (446, 1498063540), (892, 749031770), (1115, 599225416), (1784, 374515885), (2230, 299612708), (4460, 149806354), (8920, 74903177)]