12864800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1270

約数の個数: 72

約数和(自身を含む): 33849396

約数和(自身を除く): 20984596

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1237, 1300, 2080, 2474, 2600, 4948, 5200, 6185, 9896, 10400, 12370, 16081, 19792, 24740, 30925, 32162, 39584, 49480, 61850, 64324, 80405, 98960, 123700, 128648, 160810, 197920, 247400, 257296, 321620, 402025, 494800, 514592, 643240, 804050, 989600, 1286480, 1608100, 2572960, 3216200, 6432400, 12864800]

約数ペア:

[(1, 12864800), (2, 6432400), (4, 3216200), (5, 2572960), (8, 1608100), (10, 1286480), (13, 989600), (16, 804050), (20, 643240), (25, 514592), (26, 494800), (32, 402025), (40, 321620), (50, 257296), (52, 247400), (65, 197920), (80, 160810), (100, 128648), (104, 123700), (130, 98960), (160, 80405), (200, 64324), (208, 61850), (260, 49480), (325, 39584), (400, 32162), (416, 30925), (520, 24740), (650, 19792), (800, 16081), (1040, 12370), (1237, 10400), (1300, 9896), (2080, 6185), (2474, 5200), (2600, 4948)]