20742550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1061}}^1$

素因数の和:1113

約数の個数: 48

約数和(自身を含む): 42666912

約数和(自身を除く): 21924362

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1061, 1150, 1955, 2122, 3910, 5305, 9775, 10610, 18037, 19550, 24403, 26525, 36074, 48806, 53050, 90185, 122015, 180370, 244030, 414851, 450925, 610075, 829702, 901850, 1220150, 2074255, 4148510, 10371275, 20742550]

約数ペア:

[(1, 20742550), (2, 10371275), (5, 4148510), (10, 2074255), (17, 1220150), (23, 901850), (25, 829702), (34, 610075), (46, 450925), (50, 414851), (85, 244030), (115, 180370), (170, 122015), (230, 90185), (391, 53050), (425, 48806), (575, 36074), (782, 26525), (850, 24403), (1061, 19550), (1150, 18037), (1955, 10610), (2122, 9775), (3910, 5305)]