15698866640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1103}}^1\times {\mathrm{1999}}^1$

素因数の和:3204

約数の個数: 80

約数和(自身を含む): 36961920000

約数和(自身を除く): 21263053360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1103, 1424, 1780, 1999, 2206, 3560, 3998, 4412, 5515, 7120, 7996, 8824, 9995, 11030, 15992, 17648, 19990, 22060, 31984, 39980, 44120, 79960, 88240, 98167, 159920, 177911, 196334, 355822, 392668, 490835, 711644, 785336, 889555, 981670, 1423288, 1570672, 1779110, 1963340, 2204897, 2846576, 3558220, 3926680, 4409794, 7116440, 7853360, 8819588, 11024485, 14232880, 17639176, 22048970, 35278352, 44097940, 88195880, 176391760, 196235833, 392471666, 784943332, 981179165, 1569886664, 1962358330, 3139773328, 3924716660, 7849433320, 15698866640]

約数ペア:

[(1, 15698866640), (2, 7849433320), (4, 3924716660), (5, 3139773328), (8, 1962358330), (10, 1569886664), (16, 981179165), (20, 784943332), (40, 392471666), (80, 196235833), (89, 176391760), (178, 88195880), (356, 44097940), (445, 35278352), (712, 22048970), (890, 17639176), (1103, 14232880), (1424, 11024485), (1780, 8819588), (1999, 7853360), (2206, 7116440), (3560, 4409794), (3998, 3926680), (4412, 3558220), (5515, 2846576), (7120, 2204897), (7996, 1963340), (8824, 1779110), (9995, 1570672), (11030, 1423288), (15992, 981670), (17648, 889555), (19990, 785336), (22060, 711644), (31984, 490835), (39980, 392668), (44120, 355822), (79960, 196334), (88240, 177911), (98167, 159920)]