157225565

素因数分解:

$5^1\times 7^2\times {\mathrm{491}}^1\times {\mathrm{1307}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 220089312

約数和(自身を除く): 62863747

約数列:

[1, 5, 7, 35, 49, 245, 491, 1307, 2455, 3437, 6535, 9149, 17185, 24059, 45745, 64043, 120295, 320215, 641737, 3208685, 4492159, 22460795, 31445113, 157225565]

約数ペア:

[(1, 157225565), (5, 31445113), (7, 22460795), (35, 4492159), (49, 3208685), (245, 641737), (491, 320215), (1307, 120295), (2455, 64043), (3437, 45745), (6535, 24059), (9149, 17185)]