40432840

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 80

約数和(自身を含む): 106381980

約数和(自身を除く): 65949140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 421, 490, 686, 842, 980, 1372, 1684, 1715, 1960, 2105, 2401, 2744, 2947, 3368, 3430, 4210, 4802, 5894, 6860, 8420, 9604, 11788, 12005, 13720, 14735, 16840, 19208, 20629, 23576, 24010, 29470, 41258, 48020, 58940, 82516, 96040, 103145, 117880, 144403, 165032, 206290, 288806, 412580, 577612, 722015, 825160, 1010821, 1155224, 1444030, 2021642, 2888060, 4043284, 5054105, 5776120, 8086568, 10108210, 20216420, 40432840]

約数ペア:

[(1, 40432840), (2, 20216420), (4, 10108210), (5, 8086568), (7, 5776120), (8, 5054105), (10, 4043284), (14, 2888060), (20, 2021642), (28, 1444030), (35, 1155224), (40, 1010821), (49, 825160), (56, 722015), (70, 577612), (98, 412580), (140, 288806), (196, 206290), (245, 165032), (280, 144403), (343, 117880), (392, 103145), (421, 96040), (490, 82516), (686, 58940), (842, 48020), (980, 41258), (1372, 29470), (1684, 24010), (1715, 23576), (1960, 20629), (2105, 19208), (2401, 16840), (2744, 14735), (2947, 13720), (3368, 12005), (3430, 11788), (4210, 9604), (4802, 8420), (5894, 6860)]