261566000

素因数分解:

$2^4\times 5^3\times {\mathrm{130783}}^1$

素因数の和:130806

約数の個数: 40

約数和(自身を含む): 632471424

約数和(自身を除く): 370905424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 130783, 261566, 523132, 653915, 1046264, 1307830, 2092528, 2615660, 3269575, 5231320, 6539150, 10462640, 13078300, 16347875, 26156600, 32695750, 52313200, 65391500, 130783000, 261566000]

約数ペア:

[(1, 261566000), (2, 130783000), (4, 65391500), (5, 52313200), (8, 32695750), (10, 26156600), (16, 16347875), (20, 13078300), (25, 10462640), (40, 6539150), (50, 5231320), (80, 3269575), (100, 2615660), (125, 2092528), (200, 1307830), (250, 1046264), (400, 653915), (500, 523132), (1000, 261566), (2000, 130783)]