20161172920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72004189}}^1$

素因数の和:72004207

約数の個数: 32

約数和(自身を含む): 51843016800

約数和(自身を除く): 31681843880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72004189, 144008378, 288016756, 360020945, 504029323, 576033512, 720041890, 1008058646, 1440083780, 2016117292, 2520146615, 2880167560, 4032234584, 5040293230, 10080586460, 20161172920]

約数ペア:

[(1, 20161172920), (2, 10080586460), (4, 5040293230), (5, 4032234584), (7, 2880167560), (8, 2520146615), (10, 2016117292), (14, 1440083780), (20, 1008058646), (28, 720041890), (35, 576033512), (40, 504029323), (56, 360020945), (70, 288016756), (140, 144008378), (280, 72004189)]