208676810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 414720000

約数和(自身を除く): 206043190

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 71, 95, 142, 155, 190, 310, 355, 499, 589, 710, 998, 1178, 1349, 2201, 2495, 2698, 2945, 4402, 4990, 5890, 6745, 9481, 11005, 13490, 15469, 18962, 22010, 30938, 35429, 41819, 47405, 70858, 77345, 83638, 94810, 154690, 177145, 209095, 293911, 354290, 418190, 587822, 673151, 1098299, 1346302, 1469555, 2196598, 2939110, 3365755, 5491495, 6731510, 10982990, 20867681, 41735362, 104338405, 208676810]

約数ペア:

[(1, 208676810), (2, 104338405), (5, 41735362), (10, 20867681), (19, 10982990), (31, 6731510), (38, 5491495), (62, 3365755), (71, 2939110), (95, 2196598), (142, 1469555), (155, 1346302), (190, 1098299), (310, 673151), (355, 587822), (499, 418190), (589, 354290), (710, 293911), (998, 209095), (1178, 177145), (1349, 154690), (2201, 94810), (2495, 83638), (2698, 77345), (2945, 70858), (4402, 47405), (4990, 41819), (5890, 35429), (6745, 30938), (9481, 22010), (11005, 18962), (13490, 15469)]