2012643875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1879}}^1$

素因数の和:1965

約数の個数: 64

約数和(自身を含む): 2956262400

約数和(自身を除く): 943618525

約数列:

[1, 5, 11, 19, 25, 41, 55, 95, 125, 205, 209, 275, 451, 475, 779, 1025, 1045, 1375, 1879, 2255, 2375, 3895, 5125, 5225, 8569, 9395, 11275, 19475, 20669, 26125, 35701, 42845, 46975, 56375, 77039, 97375, 103345, 178505, 214225, 234875, 385195, 392711, 516725, 847429, 892525, 1071125, 1463741, 1925975, 1963555, 2583625, 4237145, 4462625, 7318705, 9629875, 9817775, 16101151, 21185725, 36593525, 49088875, 80505755, 105928625, 182967625, 402528775, 2012643875]

約数ペア:

[(1, 2012643875), (5, 402528775), (11, 182967625), (19, 105928625), (25, 80505755), (41, 49088875), (55, 36593525), (95, 21185725), (125, 16101151), (205, 9817775), (209, 9629875), (275, 7318705), (451, 4462625), (475, 4237145), (779, 2583625), (1025, 1963555), (1045, 1925975), (1375, 1463741), (1879, 1071125), (2255, 892525), (2375, 847429), (3895, 516725), (5125, 392711), (5225, 385195), (8569, 234875), (9395, 214225), (11275, 178505), (19475, 103345), (20669, 97375), (26125, 77039), (35701, 56375), (42845, 46975)]