1296821120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{289469}}^1$

素因数の和:289495

約数の個数: 64

約数和(自身を含む): 3543112800

約数和(自身を除く): 2246291680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 289469, 578938, 1157876, 1447345, 2026283, 2315752, 2894690, 4052566, 4631504, 5789380, 8105132, 9263008, 10131415, 11578760, 16210264, 18526016, 20262830, 23157520, 32420528, 37052032, 40525660, 46315040, 64841056, 81051320, 92630080, 129682112, 162102640, 185260160, 259364224, 324205280, 648410560, 1296821120]

約数ペア:

[(1, 1296821120), (2, 648410560), (4, 324205280), (5, 259364224), (7, 185260160), (8, 162102640), (10, 129682112), (14, 92630080), (16, 81051320), (20, 64841056), (28, 46315040), (32, 40525660), (35, 37052032), (40, 32420528), (56, 23157520), (64, 20262830), (70, 18526016), (80, 16210264), (112, 11578760), (128, 10131415), (140, 9263008), (160, 8105132), (224, 5789380), (280, 4631504), (320, 4052566), (448, 2894690), (560, 2315752), (640, 2026283), (896, 1447345), (1120, 1157876), (2240, 578938), (4480, 289469)]