261457688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 537788160

約数和(自身を除く): 276330472

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 223, 233, 296, 446, 466, 629, 892, 932, 1258, 1784, 1864, 2516, 3791, 3961, 5032, 7582, 7922, 8251, 8621, 15164, 15844, 16502, 17242, 30328, 31688, 33004, 34484, 51959, 66008, 68968, 103918, 140267, 146557, 207836, 280534, 293114, 415672, 561068, 586228, 883303, 1122136, 1172456, 1766606, 1922483, 3533212, 3844966, 7066424, 7689932, 15379864, 32682211, 65364422, 130728844, 261457688]

約数ペア:

[(1, 261457688), (2, 130728844), (4, 65364422), (8, 32682211), (17, 15379864), (34, 7689932), (37, 7066424), (68, 3844966), (74, 3533212), (136, 1922483), (148, 1766606), (223, 1172456), (233, 1122136), (296, 883303), (446, 586228), (466, 561068), (629, 415672), (892, 293114), (932, 280534), (1258, 207836), (1784, 146557), (1864, 140267), (2516, 103918), (3791, 68968), (3961, 66008), (5032, 51959), (7582, 34484), (7922, 33004), (8251, 31688), (8621, 30328), (15164, 17242), (15844, 16502)]