31281200

素因数分解:

$2^4\times 5^2\times {\mathrm{78203}}^1$

素因数の和:78221

約数の個数: 30

約数和(自身を含む): 75154044

約数和(自身を除く): 43872844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 78203, 156406, 312812, 391015, 625624, 782030, 1251248, 1564060, 1955075, 3128120, 3910150, 6256240, 7820300, 15640600, 31281200]

約数ペア:

[(1, 31281200), (2, 15640600), (4, 7820300), (5, 6256240), (8, 3910150), (10, 3128120), (16, 1955075), (20, 1564060), (25, 1251248), (40, 782030), (50, 625624), (80, 391015), (100, 312812), (200, 156406), (400, 78203)]