1331960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 3525120

約数和(自身を除く): 2193160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 71, 134, 140, 142, 268, 280, 284, 335, 355, 469, 497, 536, 568, 670, 710, 938, 994, 1340, 1420, 1876, 1988, 2345, 2485, 2680, 2840, 3752, 3976, 4690, 4757, 4970, 9380, 9514, 9940, 18760, 19028, 19880, 23785, 33299, 38056, 47570, 66598, 95140, 133196, 166495, 190280, 266392, 332990, 665980, 1331960]

約数ペア:

[(1, 1331960), (2, 665980), (4, 332990), (5, 266392), (7, 190280), (8, 166495), (10, 133196), (14, 95140), (20, 66598), (28, 47570), (35, 38056), (40, 33299), (56, 23785), (67, 19880), (70, 19028), (71, 18760), (134, 9940), (140, 9514), (142, 9380), (268, 4970), (280, 4757), (284, 4690), (335, 3976), (355, 3752), (469, 2840), (497, 2680), (536, 2485), (568, 2345), (670, 1988), (710, 1876), (938, 1420), (994, 1340)]