1620343760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{413353}}^1$

素因数の和:413380

約数の個数: 60

約数和(自身を含む): 4382379108

約数和(自身を除く): 2762035348

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 413353, 826706, 1653412, 2066765, 2893471, 3306824, 4133530, 5786942, 6613648, 8267060, 11573884, 14467355, 16534120, 20254297, 23147768, 28934710, 33068240, 40508594, 46295536, 57869420, 81017188, 101271485, 115738840, 162034376, 202542970, 231477680, 324068752, 405085940, 810171880, 1620343760]

約数ペア:

[(1, 1620343760), (2, 810171880), (4, 405085940), (5, 324068752), (7, 231477680), (8, 202542970), (10, 162034376), (14, 115738840), (16, 101271485), (20, 81017188), (28, 57869420), (35, 46295536), (40, 40508594), (49, 33068240), (56, 28934710), (70, 23147768), (80, 20254297), (98, 16534120), (112, 14467355), (140, 11573884), (196, 8267060), (245, 6613648), (280, 5786942), (392, 4133530), (490, 3306824), (560, 2893471), (784, 2066765), (980, 1653412), (1960, 826706), (3920, 413353)]