199905990100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{105213679}}^1$

素因数の和:105213712

約数の個数: 36

約数和(自身を含む): 456627371200

約数和(自身を除く): 256721381100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 105213679, 210427358, 420854716, 526068395, 1052136790, 1999059901, 2104273580, 2630341975, 3998119802, 5260683950, 7996239604, 9995299505, 10521367900, 19990599010, 39981198020, 49976497525, 99952995050, 199905990100]

約数ペア:

[(1, 199905990100), (2, 99952995050), (4, 49976497525), (5, 39981198020), (10, 19990599010), (19, 10521367900), (20, 9995299505), (25, 7996239604), (38, 5260683950), (50, 3998119802), (76, 2630341975), (95, 2104273580), (100, 1999059901), (190, 1052136790), (380, 526068395), (475, 420854716), (950, 210427358), (1900, 105213679)]