661569376

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{1590311}}^1$

素因数の和:1590334

約数の個数: 24

約数和(自身を含む): 1402655184

約数和(自身を除く): 741085808

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 1590311, 3180622, 6361244, 12722488, 20674043, 25444976, 41348086, 50889952, 82696172, 165392344, 330784688, 661569376]

約数ペア:

[(1, 661569376), (2, 330784688), (4, 165392344), (8, 82696172), (13, 50889952), (16, 41348086), (26, 25444976), (32, 20674043), (52, 12722488), (104, 6361244), (208, 3180622), (416, 1590311)]