215265920

素因数分解:

$2^7\times 5^1\times {\mathrm{336353}}^1$

素因数の和:336372

約数の個数: 32

約数和(自身を含む): 514621620

約数和(自身を除く): 299355700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 336353, 672706, 1345412, 1681765, 2690824, 3363530, 5381648, 6727060, 10763296, 13454120, 21526592, 26908240, 43053184, 53816480, 107632960, 215265920]

約数ペア:

[(1, 215265920), (2, 107632960), (4, 53816480), (5, 43053184), (8, 26908240), (10, 21526592), (16, 13454120), (20, 10763296), (32, 6727060), (40, 5381648), (64, 3363530), (80, 2690824), (128, 1681765), (160, 1345412), (320, 672706), (640, 336353)]