15679324520

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{395543}}^1$

素因数の和:396545

約数の個数: 32

約数和(自身を含む): 35314168320

約数和(自身を除く): 19634843800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 7928, 9910, 19820, 39640, 395543, 791086, 1582172, 1977715, 3164344, 3955430, 7910860, 15821720, 391983113, 783966226, 1567932452, 1959915565, 3135864904, 3919831130, 7839662260, 15679324520]

約数ペア:

[(1, 15679324520), (2, 7839662260), (4, 3919831130), (5, 3135864904), (8, 1959915565), (10, 1567932452), (20, 783966226), (40, 391983113), (991, 15821720), (1982, 7910860), (3964, 3955430), (4955, 3164344), (7928, 1977715), (9910, 1582172), (19820, 791086), (39640, 395543)]