2097151025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1973}}^1$

素因数の和:2102

約数の個数: 48

約数和(自身を含む): 2868285168

約数和(自身を除く): 771134143

約数列:

[1, 5, 17, 25, 41, 61, 85, 205, 305, 425, 697, 1025, 1037, 1525, 1973, 2501, 3485, 5185, 9865, 12505, 17425, 25925, 33541, 42517, 49325, 62525, 80893, 120353, 167705, 212585, 404465, 601765, 838525, 1062925, 1375181, 2022325, 2046001, 3008825, 4934473, 6875905, 10230005, 24672365, 34379525, 51150025, 83886041, 123361825, 419430205, 2097151025]

約数ペア:

[(1, 2097151025), (5, 419430205), (17, 123361825), (25, 83886041), (41, 51150025), (61, 34379525), (85, 24672365), (205, 10230005), (305, 6875905), (425, 4934473), (697, 3008825), (1025, 2046001), (1037, 2022325), (1525, 1375181), (1973, 1062925), (2501, 838525), (3485, 601765), (5185, 404465), (9865, 212585), (12505, 167705), (17425, 120353), (25925, 80893), (33541, 62525), (42517, 49325)]