681511684

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 1450165248

約数和(自身を除く): 768653564

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 191, 266, 353, 361, 382, 532, 706, 722, 764, 1337, 1412, 1444, 2471, 2527, 2674, 3629, 4942, 5054, 5348, 6707, 7258, 9884, 10108, 13414, 14516, 25403, 26828, 46949, 50806, 67423, 68951, 93898, 101612, 127433, 134846, 137902, 187796, 254866, 269692, 275804, 471961, 482657, 509732, 892031, 943922, 965314, 1281037, 1784062, 1887844, 1930628, 2562074, 3568124, 5124148, 8967259, 17934518, 24339703, 35869036, 48679406, 97358812, 170377921, 340755842, 681511684]

約数ペア:

[(1, 681511684), (2, 340755842), (4, 170377921), (7, 97358812), (14, 48679406), (19, 35869036), (28, 24339703), (38, 17934518), (76, 8967259), (133, 5124148), (191, 3568124), (266, 2562074), (353, 1930628), (361, 1887844), (382, 1784062), (532, 1281037), (706, 965314), (722, 943922), (764, 892031), (1337, 509732), (1412, 482657), (1444, 471961), (2471, 275804), (2527, 269692), (2674, 254866), (3629, 187796), (4942, 137902), (5054, 134846), (5348, 127433), (6707, 101612), (7258, 93898), (9884, 68951), (10108, 67423), (13414, 50806), (14516, 46949), (25403, 26828)]