133399400

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{8443}}^1$

素因数の和:8538

約数の個数: 48

約数和(自身を含む): 314116800

約数和(自身を除く): 180717400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 7900, 8443, 15800, 16886, 33772, 42215, 67544, 84430, 168860, 211075, 337720, 422150, 666997, 844300, 1333994, 1688600, 2667988, 3334985, 5335976, 6669970, 13339940, 16674925, 26679880, 33349850, 66699700, 133399400]

約数ペア:

[(1, 133399400), (2, 66699700), (4, 33349850), (5, 26679880), (8, 16674925), (10, 13339940), (20, 6669970), (25, 5335976), (40, 3334985), (50, 2667988), (79, 1688600), (100, 1333994), (158, 844300), (200, 666997), (316, 422150), (395, 337720), (632, 211075), (790, 168860), (1580, 84430), (1975, 67544), (3160, 42215), (3950, 33772), (7900, 16886), (8443, 15800)]