30980000

素因数分解:

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

素因数の和:1579

約数の個数: 60

約数和(自身を含む): 76264650

約数和(自身を除く): 45284650

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1549, 2000, 2500, 3098, 4000, 5000, 6196, 7745, 10000, 12392, 15490, 20000, 24784, 30980, 38725, 49568, 61960, 77450, 123920, 154900, 193625, 247840, 309800, 387250, 619600, 774500, 968125, 1239200, 1549000, 1936250, 3098000, 3872500, 6196000, 7745000, 15490000, 30980000]

約数ペア:

[(1, 30980000), (2, 15490000), (4, 7745000), (5, 6196000), (8, 3872500), (10, 3098000), (16, 1936250), (20, 1549000), (25, 1239200), (32, 968125), (40, 774500), (50, 619600), (80, 387250), (100, 309800), (125, 247840), (160, 193625), (200, 154900), (250, 123920), (400, 77450), (500, 61960), (625, 49568), (800, 38725), (1000, 30980), (1250, 24784), (1549, 20000), (2000, 15490), (2500, 12392), (3098, 10000), (4000, 7745), (5000, 6196)]