127918280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{991}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 329978880

約数和(自身を除く): 202060600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 461, 922, 991, 1844, 1982, 2305, 3227, 3688, 3964, 4610, 4955, 6454, 6937, 7928, 9220, 9910, 12908, 13874, 16135, 18440, 19820, 25816, 27748, 32270, 34685, 39640, 55496, 64540, 69370, 129080, 138740, 277480, 456851, 913702, 1827404, 2284255, 3197957, 3654808, 4568510, 6395914, 9137020, 12791828, 15989785, 18274040, 25583656, 31979570, 63959140, 127918280]

約数ペア:

[(1, 127918280), (2, 63959140), (4, 31979570), (5, 25583656), (7, 18274040), (8, 15989785), (10, 12791828), (14, 9137020), (20, 6395914), (28, 4568510), (35, 3654808), (40, 3197957), (56, 2284255), (70, 1827404), (140, 913702), (280, 456851), (461, 277480), (922, 138740), (991, 129080), (1844, 69370), (1982, 64540), (2305, 55496), (3227, 39640), (3688, 34685), (3964, 32270), (4610, 27748), (4955, 25816), (6454, 19820), (6937, 18440), (7928, 16135), (9220, 13874), (9910, 12908)]