51644480

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1\times {\mathrm{811}}^1$

素因数の和:1027

約数の個数: 56

約数和(自身を含む): 123748800

約数和(自身を除く): 72104320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 320, 398, 796, 811, 995, 1592, 1622, 1990, 3184, 3244, 3980, 4055, 6368, 6488, 7960, 8110, 12736, 12976, 15920, 16220, 25952, 31840, 32440, 51904, 63680, 64880, 129760, 161389, 259520, 322778, 645556, 806945, 1291112, 1613890, 2582224, 3227780, 5164448, 6455560, 10328896, 12911120, 25822240, 51644480]

約数ペア:

[(1, 51644480), (2, 25822240), (4, 12911120), (5, 10328896), (8, 6455560), (10, 5164448), (16, 3227780), (20, 2582224), (32, 1613890), (40, 1291112), (64, 806945), (80, 645556), (160, 322778), (199, 259520), (320, 161389), (398, 129760), (796, 64880), (811, 63680), (995, 51904), (1592, 32440), (1622, 31840), (1990, 25952), (3184, 16220), (3244, 15920), (3980, 12976), (4055, 12736), (6368, 8110), (6488, 7960)]