128897368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{4019}}^1$

素因数の和:4255

約数の個数: 32

約数和(自身を含む): 255672000

約数和(自身を除く): 126774632

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 211, 422, 844, 1688, 4009, 4019, 8018, 8038, 16036, 16076, 32072, 32152, 76361, 152722, 305444, 610888, 848009, 1696018, 3392036, 6784072, 16112171, 32224342, 64448684, 128897368]

約数ペア:

[(1, 128897368), (2, 64448684), (4, 32224342), (8, 16112171), (19, 6784072), (38, 3392036), (76, 1696018), (152, 848009), (211, 610888), (422, 305444), (844, 152722), (1688, 76361), (4009, 32152), (4019, 32072), (8018, 16076), (8038, 16036)]