51285760

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 124356960

約数和(自身を除く): 73071200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 389, 412, 515, 640, 778, 824, 1030, 1280, 1556, 1648, 1945, 2060, 3112, 3296, 3890, 4120, 6224, 6592, 7780, 8240, 12448, 13184, 15560, 16480, 24896, 26368, 31120, 32960, 40067, 49792, 62240, 65920, 80134, 99584, 124480, 131840, 160268, 200335, 248960, 320536, 400670, 497920, 641072, 801340, 1282144, 1602680, 2564288, 3205360, 5128576, 6410720, 10257152, 12821440, 25642880, 51285760]

約数ペア:

[(1, 51285760), (2, 25642880), (4, 12821440), (5, 10257152), (8, 6410720), (10, 5128576), (16, 3205360), (20, 2564288), (32, 1602680), (40, 1282144), (64, 801340), (80, 641072), (103, 497920), (128, 400670), (160, 320536), (206, 248960), (256, 200335), (320, 160268), (389, 131840), (412, 124480), (515, 99584), (640, 80134), (778, 65920), (824, 62240), (1030, 49792), (1280, 40067), (1556, 32960), (1648, 31120), (1945, 26368), (2060, 24896), (3112, 16480), (3296, 15560), (3890, 13184), (4120, 12448), (6224, 8240), (6592, 7780)]