9777767980

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1\times {\mathrm{5653}}^1$

素因数の和:6298

約数の個数: 48

約数和(自身を含む): 20688212160

約数和(自身を除く): 10910444180

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 439, 788, 878, 985, 1756, 1970, 2195, 3940, 4390, 5653, 8780, 11306, 22612, 28265, 56530, 86483, 113060, 172966, 345932, 432415, 864830, 1113641, 1729660, 2227282, 2481667, 4454564, 4963334, 5568205, 9926668, 11136410, 12408335, 22272820, 24816670, 49633340, 488888399, 977776798, 1955553596, 2444441995, 4888883990, 9777767980]

約数ペア:

[(1, 9777767980), (2, 4888883990), (4, 2444441995), (5, 1955553596), (10, 977776798), (20, 488888399), (197, 49633340), (394, 24816670), (439, 22272820), (788, 12408335), (878, 11136410), (985, 9926668), (1756, 5568205), (1970, 4963334), (2195, 4454564), (3940, 2481667), (4390, 2227282), (5653, 1729660), (8780, 1113641), (11306, 864830), (22612, 432415), (28265, 345932), (56530, 172966), (86483, 113060)]