13781000

素因数分解:

$2^3\times 5^3\times {\mathrm{13781}}^1$

素因数の和:13802

約数の個数: 32

約数和(自身を含む): 32249880

約数和(自身を除く): 18468880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 13781, 27562, 55124, 68905, 110248, 137810, 275620, 344525, 551240, 689050, 1378100, 1722625, 2756200, 3445250, 6890500, 13781000]

約数ペア:

[(1, 13781000), (2, 6890500), (4, 3445250), (5, 2756200), (8, 1722625), (10, 1378100), (20, 689050), (25, 551240), (40, 344525), (50, 275620), (100, 137810), (125, 110248), (200, 68905), (250, 55124), (500, 27562), (1000, 13781)]