15869240

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{643}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 35819280

約数和(自身を除く): 19950040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 643, 1234, 1286, 2468, 2572, 3085, 3215, 4936, 5144, 6170, 6430, 12340, 12860, 24680, 25720, 396731, 793462, 1586924, 1983655, 3173848, 3967310, 7934620, 15869240]

約数ペア:

[(1, 15869240), (2, 7934620), (4, 3967310), (5, 3173848), (8, 1983655), (10, 1586924), (20, 793462), (40, 396731), (617, 25720), (643, 24680), (1234, 12860), (1286, 12340), (2468, 6430), (2572, 6170), (3085, 5144), (3215, 4936)]