19010300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4421}}^1$

素因数の和:4478

約数の個数: 36

約数和(自身を含む): 42221256

約数和(自身を除く): 23210956

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4421, 8842, 17684, 22105, 44210, 88420, 110525, 190103, 221050, 380206, 442100, 760412, 950515, 1901030, 3802060, 4752575, 9505150, 19010300]

約数ペア:

[(1, 19010300), (2, 9505150), (4, 4752575), (5, 3802060), (10, 1901030), (20, 950515), (25, 760412), (43, 442100), (50, 380206), (86, 221050), (100, 190103), (172, 110525), (215, 88420), (430, 44210), (860, 22105), (1075, 17684), (2150, 8842), (4300, 4421)]