18760885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1429

約数の個数: 32

約数和(自身を含む): 27861120

約数和(自身を除く): 9100235

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 715, 1045, 1235, 1381, 2717, 6905, 13585, 15191, 17953, 26239, 75955, 89765, 131195, 197483, 288629, 341107, 987415, 1443145, 1705535, 3752177, 18760885]

約数ペア:

[(1, 18760885), (5, 3752177), (11, 1705535), (13, 1443145), (19, 987415), (55, 341107), (65, 288629), (95, 197483), (143, 131195), (209, 89765), (247, 75955), (715, 26239), (1045, 17953), (1235, 15191), (1381, 13585), (2717, 6905)]