643620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 1911168

約数和(自身を除く): 1267548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 631, 1020, 1262, 1893, 2524, 3155, 3786, 6310, 7572, 9465, 10727, 12620, 18930, 21454, 32181, 37860, 42908, 53635, 64362, 107270, 128724, 160905, 214540, 321810, 643620]

約数ペア:

[(1, 643620), (2, 321810), (3, 214540), (4, 160905), (5, 128724), (6, 107270), (10, 64362), (12, 53635), (15, 42908), (17, 37860), (20, 32181), (30, 21454), (34, 18930), (51, 12620), (60, 10727), (68, 9465), (85, 7572), (102, 6310), (170, 3786), (204, 3155), (255, 2524), (340, 1893), (510, 1262), (631, 1020)]