2009190100

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{2011}}^1$

素因数の和:2225

約数の個数: 72

約数和(自身を含む): 4449867968

約数和(自身を除く): 2440677868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 103, 194, 206, 388, 412, 485, 515, 970, 1030, 1940, 2011, 2060, 2425, 2575, 4022, 4850, 5150, 8044, 9700, 9991, 10055, 10300, 19982, 20110, 39964, 40220, 49955, 50275, 99910, 100550, 195067, 199820, 201100, 207133, 249775, 390134, 414266, 499550, 780268, 828532, 975335, 999100, 1035665, 1950670, 2071330, 3901340, 4142660, 4876675, 5178325, 9753350, 10356650, 19506700, 20091901, 20713300, 40183802, 80367604, 100459505, 200919010, 401838020, 502297525, 1004595050, 2009190100]

約数ペア:

[(1, 2009190100), (2, 1004595050), (4, 502297525), (5, 401838020), (10, 200919010), (20, 100459505), (25, 80367604), (50, 40183802), (97, 20713300), (100, 20091901), (103, 19506700), (194, 10356650), (206, 9753350), (388, 5178325), (412, 4876675), (485, 4142660), (515, 3901340), (970, 2071330), (1030, 1950670), (1940, 1035665), (2011, 999100), (2060, 975335), (2425, 828532), (2575, 780268), (4022, 499550), (4850, 414266), (5150, 390134), (8044, 249775), (9700, 207133), (9991, 201100), (10055, 199820), (10300, 195067), (19982, 100550), (20110, 99910), (39964, 50275), (40220, 49955)]