13507280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1549}}^1$

素因数の和:1671

約数の個数: 40

約数和(自身を含む): 31713000

約数和(自身を除く): 18205720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1549, 1744, 2180, 3098, 4360, 6196, 7745, 8720, 12392, 15490, 24784, 30980, 61960, 123920, 168841, 337682, 675364, 844205, 1350728, 1688410, 2701456, 3376820, 6753640, 13507280]

約数ペア:

[(1, 13507280), (2, 6753640), (4, 3376820), (5, 2701456), (8, 1688410), (10, 1350728), (16, 844205), (20, 675364), (40, 337682), (80, 168841), (109, 123920), (218, 61960), (436, 30980), (545, 24784), (872, 15490), (1090, 12392), (1549, 8720), (1744, 7745), (2180, 6196), (3098, 4360)]