128996816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^2$

素因数の和:420

約数の個数: 60

約数和(自身を含む): 286489476

約数和(自身を除く): 157492660

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 191, 208, 221, 272, 382, 442, 764, 884, 1528, 1768, 2483, 3056, 3247, 3536, 4966, 6494, 9932, 12988, 19864, 25976, 36481, 39728, 42211, 51952, 72962, 84422, 145924, 168844, 291848, 337688, 474253, 583696, 620177, 675376, 948506, 1240354, 1897012, 2480708, 3794024, 4961416, 7588048, 8062301, 9922832, 16124602, 32249204, 64498408, 128996816]

約数ペア:

[(1, 128996816), (2, 64498408), (4, 32249204), (8, 16124602), (13, 9922832), (16, 8062301), (17, 7588048), (26, 4961416), (34, 3794024), (52, 2480708), (68, 1897012), (104, 1240354), (136, 948506), (191, 675376), (208, 620177), (221, 583696), (272, 474253), (382, 337688), (442, 291848), (764, 168844), (884, 145924), (1528, 84422), (1768, 72962), (2483, 51952), (3056, 42211), (3247, 39728), (3536, 36481), (4966, 25976), (6494, 19864), (9932, 12988)]