29905000

素因数分解:

$2^3\times 5^4\times {\mathrm{5981}}^1$

素因数の和:6007

約数の個数: 40

約数和(自身を含む): 70079130

約数和(自身を除く): 40174130

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 5981, 11962, 23924, 29905, 47848, 59810, 119620, 149525, 239240, 299050, 598100, 747625, 1196200, 1495250, 2990500, 3738125, 5981000, 7476250, 14952500, 29905000]

約数ペア:

[(1, 29905000), (2, 14952500), (4, 7476250), (5, 5981000), (8, 3738125), (10, 2990500), (20, 1495250), (25, 1196200), (40, 747625), (50, 598100), (100, 299050), (125, 239240), (200, 149525), (250, 119620), (500, 59810), (625, 47848), (1000, 29905), (1250, 23924), (2500, 11962), (5000, 5981)]