51989240

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1433}}^1$

素因数の和:2351

約数の個数: 32

約数和(自身を含む): 117186480

約数和(自身を除く): 65197240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1433, 1814, 2866, 3628, 4535, 5732, 7165, 7256, 9070, 11464, 14330, 18140, 28660, 36280, 57320, 1299731, 2599462, 5198924, 6498655, 10397848, 12997310, 25994620, 51989240]

約数ペア:

[(1, 51989240), (2, 25994620), (4, 12997310), (5, 10397848), (8, 6498655), (10, 5198924), (20, 2599462), (40, 1299731), (907, 57320), (1433, 36280), (1814, 28660), (2866, 18140), (3628, 14330), (4535, 11464), (5732, 9070), (7165, 7256)]