128538428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 245216160

約数和(自身を除く): 116677732

約数列:

[1, 2, 4, 17, 34, 67, 68, 89, 134, 178, 268, 317, 356, 634, 1139, 1268, 1513, 2278, 3026, 4556, 5389, 5963, 6052, 10778, 11926, 21239, 21556, 23852, 28213, 42478, 56426, 84956, 101371, 112852, 202742, 361063, 405484, 479621, 722126, 959242, 1444252, 1890271, 1918484, 3780542, 7561084, 32134607, 64269214, 128538428]

約数ペア:

[(1, 128538428), (2, 64269214), (4, 32134607), (17, 7561084), (34, 3780542), (67, 1918484), (68, 1890271), (89, 1444252), (134, 959242), (178, 722126), (268, 479621), (317, 405484), (356, 361063), (634, 202742), (1139, 112852), (1268, 101371), (1513, 84956), (2278, 56426), (3026, 42478), (4556, 28213), (5389, 23852), (5963, 21556), (6052, 21239), (10778, 11926)]