16254320

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1021}}^1$

素因数の和:1233

約数の個数: 40

約数和(自身を含む): 38018400

約数和(自身を除く): 21764080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1021, 1592, 1990, 2042, 3184, 3980, 4084, 5105, 7960, 8168, 10210, 15920, 16336, 20420, 40840, 81680, 203179, 406358, 812716, 1015895, 1625432, 2031790, 3250864, 4063580, 8127160, 16254320]

約数ペア:

[(1, 16254320), (2, 8127160), (4, 4063580), (5, 3250864), (8, 2031790), (10, 1625432), (16, 1015895), (20, 812716), (40, 406358), (80, 203179), (199, 81680), (398, 40840), (796, 20420), (995, 16336), (1021, 15920), (1592, 10210), (1990, 8168), (2042, 7960), (3184, 5105), (3980, 4084)]