20164871080

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1447}}^1\times {\mathrm{2543}}^1$

素因数の和:4138

約数の個数: 64

約数和(自身を含む): 45751703040

約数和(自身を除く): 25586831960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 1447, 2543, 2740, 2894, 5086, 5480, 5788, 7235, 10172, 11576, 12715, 14470, 20344, 25430, 28940, 50860, 57880, 101720, 198239, 348391, 396478, 696782, 792956, 991195, 1393564, 1585912, 1741955, 1982390, 2787128, 3483910, 3679721, 3964780, 6967820, 7359442, 7929560, 13935640, 14718884, 18398605, 29437768, 36797210, 73594420, 147188840, 504121777, 1008243554, 2016487108, 2520608885, 4032974216, 5041217770, 10082435540, 20164871080]

約数ペア:

[(1, 20164871080), (2, 10082435540), (4, 5041217770), (5, 4032974216), (8, 2520608885), (10, 2016487108), (20, 1008243554), (40, 504121777), (137, 147188840), (274, 73594420), (548, 36797210), (685, 29437768), (1096, 18398605), (1370, 14718884), (1447, 13935640), (2543, 7929560), (2740, 7359442), (2894, 6967820), (5086, 3964780), (5480, 3679721), (5788, 3483910), (7235, 2787128), (10172, 1982390), (11576, 1741955), (12715, 1585912), (14470, 1393564), (20344, 991195), (25430, 792956), (28940, 696782), (50860, 396478), (57880, 348391), (101720, 198239)]