257137680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1071407}}^1$

素因数の和:1071423

約数の個数: 40

約数和(自身を含む): 797127552

約数和(自身を除く): 539989872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1071407, 2142814, 3214221, 4285628, 5357035, 6428442, 8571256, 10714070, 12856884, 16071105, 17142512, 21428140, 25713768, 32142210, 42856280, 51427536, 64284420, 85712560, 128568840, 257137680]

約数ペア:

[(1, 257137680), (2, 128568840), (3, 85712560), (4, 64284420), (5, 51427536), (6, 42856280), (8, 32142210), (10, 25713768), (12, 21428140), (15, 17142512), (16, 16071105), (20, 12856884), (24, 10714070), (30, 8571256), (40, 6428442), (48, 5357035), (60, 4285628), (80, 3214221), (120, 2142814), (240, 1071407)]