80354420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2053}}^1$

素因数の和:2184

約数の個数: 48

約数和(自身を含む): 179437440

約数和(自身を除く): 99083020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1957, 2053, 2060, 3914, 4106, 7828, 8212, 9785, 10265, 19570, 20530, 39007, 39140, 41060, 78014, 156028, 195035, 211459, 390070, 422918, 780140, 845836, 1057295, 2114590, 4017721, 4229180, 8035442, 16070884, 20088605, 40177210, 80354420]

約数ペア:

[(1, 80354420), (2, 40177210), (4, 20088605), (5, 16070884), (10, 8035442), (19, 4229180), (20, 4017721), (38, 2114590), (76, 1057295), (95, 845836), (103, 780140), (190, 422918), (206, 390070), (380, 211459), (412, 195035), (515, 156028), (1030, 78014), (1957, 41060), (2053, 39140), (2060, 39007), (3914, 20530), (4106, 19570), (7828, 10265), (8212, 9785)]