128889215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1237}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 191345280

約数和(自身を除く): 62456065

約数列:

[1, 5, 7, 13, 35, 65, 91, 229, 455, 1145, 1237, 1603, 2977, 6185, 8015, 8659, 14885, 16081, 20839, 43295, 80405, 104195, 112567, 283273, 562835, 1416365, 1982911, 3682549, 9914555, 18412745, 25777843, 128889215]

約数ペア:

[(1, 128889215), (5, 25777843), (7, 18412745), (13, 9914555), (35, 3682549), (65, 1982911), (91, 1416365), (229, 562835), (455, 283273), (1145, 112567), (1237, 104195), (1603, 80405), (2977, 43295), (6185, 20839), (8015, 16081), (8659, 14885)]