201220415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 297198720

約数和(自身を除く): 95978305

約数列:

[1, 5, 11, 17, 29, 41, 55, 85, 145, 181, 187, 205, 319, 451, 493, 697, 905, 935, 1189, 1595, 1991, 2255, 2465, 3077, 3485, 5249, 5423, 5945, 7421, 7667, 9955, 13079, 15385, 20213, 26245, 27115, 33847, 37105, 38335, 57739, 65395, 81631, 89233, 101065, 126157, 169235, 215209, 222343, 288695, 408155, 446165, 630785, 981563, 1076045, 1111715, 1387727, 2367299, 3658553, 4907815, 6938635, 11836495, 18292765, 40244083, 201220415]

約数ペア:

[(1, 201220415), (5, 40244083), (11, 18292765), (17, 11836495), (29, 6938635), (41, 4907815), (55, 3658553), (85, 2367299), (145, 1387727), (181, 1111715), (187, 1076045), (205, 981563), (319, 630785), (451, 446165), (493, 408155), (697, 288695), (905, 222343), (935, 215209), (1189, 169235), (1595, 126157), (1991, 101065), (2255, 89233), (2465, 81631), (3077, 65395), (3485, 57739), (5249, 38335), (5423, 37105), (5945, 33847), (7421, 27115), (7667, 26245), (9955, 20213), (13079, 15385)]