72683560

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2749}}^1$

素因数の和:3421

約数の個数: 32

約数和(自身を含む): 163845000

約数和(自身を除く): 91161440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 2749, 3305, 5288, 5498, 6610, 10996, 13220, 13745, 21992, 26440, 27490, 54980, 109960, 1817089, 3634178, 7268356, 9085445, 14536712, 18170890, 36341780, 72683560]

約数ペア:

[(1, 72683560), (2, 36341780), (4, 18170890), (5, 14536712), (8, 9085445), (10, 7268356), (20, 3634178), (40, 1817089), (661, 109960), (1322, 54980), (2644, 27490), (2749, 26440), (3305, 21992), (5288, 13745), (5498, 13220), (6610, 10996)]