400127021

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 488693760

約数和(自身を除く): 88566739

約数列:

[1, 7, 23, 79, 161, 163, 193, 553, 1141, 1351, 1817, 3749, 4439, 12719, 12877, 15247, 26243, 31073, 31459, 90139, 106729, 220213, 296171, 350681, 723557, 2073197, 2454767, 2485261, 5064899, 17396827, 57161003, 400127021]

約数ペア:

[(1, 400127021), (7, 57161003), (23, 17396827), (79, 5064899), (161, 2485261), (163, 2454767), (193, 2073197), (553, 723557), (1141, 350681), (1351, 296171), (1817, 220213), (3749, 106729), (4439, 90139), (12719, 31459), (12877, 31073), (15247, 26243)]