13088980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 29420496

約数和(自身を除く): 16331516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 281, 340, 548, 562, 685, 1124, 1370, 1405, 2329, 2740, 2810, 4658, 4777, 5620, 9316, 9554, 11645, 19108, 23290, 23885, 38497, 46580, 47770, 76994, 95540, 153988, 192485, 384970, 654449, 769940, 1308898, 2617796, 3272245, 6544490, 13088980]

約数ペア:

[(1, 13088980), (2, 6544490), (4, 3272245), (5, 2617796), (10, 1308898), (17, 769940), (20, 654449), (34, 384970), (68, 192485), (85, 153988), (137, 95540), (170, 76994), (274, 47770), (281, 46580), (340, 38497), (548, 23885), (562, 23290), (685, 19108), (1124, 11645), (1370, 9554), (1405, 9316), (2329, 5620), (2740, 4777), (2810, 4658)]