12916000

素因数分解:

$2^5\times 5^3\times {\mathrm{3229}}^1$

素因数の和:3254

約数の個数: 48

約数和(自身を含む): 31744440

約数和(自身を除く): 18828440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 3229, 4000, 6458, 12916, 16145, 25832, 32290, 51664, 64580, 80725, 103328, 129160, 161450, 258320, 322900, 403625, 516640, 645800, 807250, 1291600, 1614500, 2583200, 3229000, 6458000, 12916000]

約数ペア:

[(1, 12916000), (2, 6458000), (4, 3229000), (5, 2583200), (8, 1614500), (10, 1291600), (16, 807250), (20, 645800), (25, 516640), (32, 403625), (40, 322900), (50, 258320), (80, 161450), (100, 129160), (125, 103328), (160, 80725), (200, 64580), (250, 51664), (400, 32290), (500, 25832), (800, 16145), (1000, 12916), (2000, 6458), (3229, 4000)]