128913770

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 235692288

約数和(自身を除く): 106778518

約数列:

[1, 2, 5, 10, 103, 206, 257, 487, 514, 515, 974, 1030, 1285, 2435, 2570, 4870, 26471, 50161, 52942, 100322, 125159, 132355, 250318, 250805, 264710, 501610, 625795, 1251590, 12891377, 25782754, 64456885, 128913770]

約数ペア:

[(1, 128913770), (2, 64456885), (5, 25782754), (10, 12891377), (103, 1251590), (206, 625795), (257, 501610), (487, 264710), (514, 250805), (515, 250318), (974, 132355), (1030, 125159), (1285, 100322), (2435, 52942), (2570, 50161), (4870, 26471)]