8401328

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{239}}^1$

素因数の和:286

約数の個数: 40

約数和(自身を含む): 17707200

約数和(自身を除く): 9305872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 239, 338, 478, 676, 956, 1352, 1912, 2197, 2704, 3107, 3824, 4394, 6214, 8788, 12428, 17576, 24856, 35152, 40391, 49712, 80782, 161564, 323128, 525083, 646256, 1050166, 2100332, 4200664, 8401328]

約数ペア:

[(1, 8401328), (2, 4200664), (4, 2100332), (8, 1050166), (13, 646256), (16, 525083), (26, 323128), (52, 161564), (104, 80782), (169, 49712), (208, 40391), (239, 35152), (338, 24856), (478, 17576), (676, 12428), (956, 8788), (1352, 6214), (1912, 4394), (2197, 3824), (2704, 3107)]