15553880

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{647}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 35108640

約数和(自身を除く): 19554760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 647, 1202, 1294, 2404, 2588, 3005, 3235, 4808, 5176, 6010, 6470, 12020, 12940, 24040, 25880, 388847, 777694, 1555388, 1944235, 3110776, 3888470, 7776940, 15553880]

約数ペア:

[(1, 15553880), (2, 7776940), (4, 3888470), (5, 3110776), (8, 1944235), (10, 1555388), (20, 777694), (40, 388847), (601, 25880), (647, 24040), (1202, 12940), (1294, 12020), (2404, 6470), (2588, 6010), (3005, 5176), (3235, 4808)]