205720185

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1087}}^1$

素因数の和:1174

約数の個数: 64

約数和(自身を含む): 381026304

約数和(自身を除く): 175306119

約数列:

[1, 3, 5, 11, 15, 31, 33, 37, 55, 93, 111, 155, 165, 185, 341, 407, 465, 555, 1023, 1087, 1147, 1221, 1705, 2035, 3261, 3441, 5115, 5435, 5735, 6105, 11957, 12617, 16305, 17205, 33697, 35871, 37851, 40219, 59785, 63085, 101091, 120657, 168485, 179355, 189255, 201095, 370667, 442409, 505455, 603285, 1112001, 1246789, 1327227, 1853335, 2212045, 3740367, 5560005, 6233945, 6636135, 13714679, 18701835, 41144037, 68573395, 205720185]

約数ペア:

[(1, 205720185), (3, 68573395), (5, 41144037), (11, 18701835), (15, 13714679), (31, 6636135), (33, 6233945), (37, 5560005), (55, 3740367), (93, 2212045), (111, 1853335), (155, 1327227), (165, 1246789), (185, 1112001), (341, 603285), (407, 505455), (465, 442409), (555, 370667), (1023, 201095), (1087, 189255), (1147, 179355), (1221, 168485), (1705, 120657), (2035, 101091), (3261, 63085), (3441, 59785), (5115, 40219), (5435, 37851), (5735, 35871), (6105, 33697), (11957, 17205), (12617, 16305)]