645956465

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 999129600

約数和(自身を除く): 353173135

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 97, 245, 343, 353, 385, 485, 539, 679, 1067, 1715, 1765, 2471, 2695, 3395, 3773, 3883, 4753, 5335, 7469, 12355, 17297, 18865, 19415, 23765, 27181, 33271, 34241, 37345, 52283, 86485, 121079, 135905, 166355, 171205, 190267, 239687, 261415, 365981, 376651, 605395, 951335, 1198435, 1331869, 1677809, 1829905, 1883255, 2636557, 6659345, 8389045, 11744663, 13182785, 18455899, 58723315, 92279495, 129191293, 645956465]

約数ペア:

[(1, 645956465), (5, 129191293), (7, 92279495), (11, 58723315), (35, 18455899), (49, 13182785), (55, 11744663), (77, 8389045), (97, 6659345), (245, 2636557), (343, 1883255), (353, 1829905), (385, 1677809), (485, 1331869), (539, 1198435), (679, 951335), (1067, 605395), (1715, 376651), (1765, 365981), (2471, 261415), (2695, 239687), (3395, 190267), (3773, 171205), (3883, 166355), (4753, 135905), (5335, 121079), (7469, 86485), (12355, 52283), (17297, 37345), (18865, 34241), (19415, 33271), (23765, 27181)]