18155960

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{839}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 40975200

約数和(自身を除く): 22819240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 839, 1082, 1678, 2164, 2705, 3356, 4195, 4328, 5410, 6712, 8390, 10820, 16780, 21640, 33560, 453899, 907798, 1815596, 2269495, 3631192, 4538990, 9077980, 18155960]

約数ペア:

[(1, 18155960), (2, 9077980), (4, 4538990), (5, 3631192), (8, 2269495), (10, 1815596), (20, 907798), (40, 453899), (541, 33560), (839, 21640), (1082, 16780), (1678, 10820), (2164, 8390), (2705, 6712), (3356, 5410), (4195, 4328)]