31920266

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 61440000

約数和(自身を除く): 29519734

約数列:

[1, 2, 7, 14, 19, 31, 38, 49, 62, 79, 98, 133, 158, 217, 266, 343, 434, 553, 589, 686, 931, 1106, 1178, 1501, 1519, 1862, 2449, 3002, 3038, 3871, 4123, 4898, 6517, 7742, 8246, 10507, 10633, 13034, 17143, 21014, 21266, 27097, 28861, 34286, 46531, 54194, 57722, 73549, 93062, 120001, 147098, 202027, 240002, 325717, 404054, 514843, 651434, 840007, 1029686, 1680014, 2280019, 4560038, 15960133, 31920266]

約数ペア:

[(1, 31920266), (2, 15960133), (7, 4560038), (14, 2280019), (19, 1680014), (31, 1029686), (38, 840007), (49, 651434), (62, 514843), (79, 404054), (98, 325717), (133, 240002), (158, 202027), (217, 147098), (266, 120001), (343, 93062), (434, 73549), (553, 57722), (589, 54194), (686, 46531), (931, 34286), (1106, 28861), (1178, 27097), (1501, 21266), (1519, 21014), (1862, 17143), (2449, 13034), (3002, 10633), (3038, 10507), (3871, 8246), (4123, 7742), (4898, 6517)]