260286728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{147221}}^1$

素因数の和:147257

約数の個数: 32

約数和(自身を含む): 556499160

約数和(自身を除く): 296212432

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 147221, 294442, 588884, 1177768, 1913873, 2502757, 3827746, 5005514, 7655492, 10011028, 15310984, 20022056, 32535841, 65071682, 130143364, 260286728]

約数ペア:

[(1, 260286728), (2, 130143364), (4, 65071682), (8, 32535841), (13, 20022056), (17, 15310984), (26, 10011028), (34, 7655492), (52, 5005514), (68, 3827746), (104, 2502757), (136, 1913873), (221, 1177768), (442, 588884), (884, 294442), (1768, 147221)]