2017658020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{20327}}^1$

素因数の和:21052

約数の個数: 48

約数和(自身を含む): 4849447680

約数和(自身を除く): 2831789660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 709, 1418, 2836, 3545, 4963, 7090, 9926, 14180, 19852, 20327, 24815, 40654, 49630, 81308, 99260, 101635, 142289, 203270, 284578, 406540, 569156, 711445, 1422890, 2845780, 14411843, 28823686, 57647372, 72059215, 100882901, 144118430, 201765802, 288236860, 403531604, 504414505, 1008829010, 2017658020]

約数ペア:

[(1, 2017658020), (2, 1008829010), (4, 504414505), (5, 403531604), (7, 288236860), (10, 201765802), (14, 144118430), (20, 100882901), (28, 72059215), (35, 57647372), (70, 28823686), (140, 14411843), (709, 2845780), (1418, 1422890), (2836, 711445), (3545, 569156), (4963, 406540), (7090, 284578), (9926, 203270), (14180, 142289), (19852, 101635), (20327, 99260), (24815, 81308), (40654, 49630)]