298731640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 687813120

約数和(自身を除く): 389081480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 191, 244, 305, 382, 488, 610, 641, 764, 955, 1220, 1282, 1528, 1910, 2440, 2564, 3205, 3820, 5128, 6410, 7640, 11651, 12820, 23302, 25640, 39101, 46604, 58255, 78202, 93208, 116510, 122431, 156404, 195505, 233020, 244862, 312808, 391010, 466040, 489724, 612155, 782020, 979448, 1224310, 1564040, 2448620, 4897240, 7468291, 14936582, 29873164, 37341455, 59746328, 74682910, 149365820, 298731640]

約数ペア:

[(1, 298731640), (2, 149365820), (4, 74682910), (5, 59746328), (8, 37341455), (10, 29873164), (20, 14936582), (40, 7468291), (61, 4897240), (122, 2448620), (191, 1564040), (244, 1224310), (305, 979448), (382, 782020), (488, 612155), (610, 489724), (641, 466040), (764, 391010), (955, 312808), (1220, 244862), (1282, 233020), (1528, 195505), (1910, 156404), (2440, 122431), (2564, 116510), (3205, 93208), (3820, 78202), (5128, 58255), (6410, 46604), (7640, 39101), (11651, 25640), (12820, 23302)]