19906490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6163}}^1$

素因数の和:6206

約数の個数: 32

約数和(自身を含む): 39942720

約数和(自身を除く): 20036230

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6163, 12326, 30815, 61630, 104771, 117097, 209542, 234194, 523855, 585485, 1047710, 1170970, 1990649, 3981298, 9953245, 19906490]

約数ペア:

[(1, 19906490), (2, 9953245), (5, 3981298), (10, 1990649), (17, 1170970), (19, 1047710), (34, 585485), (38, 523855), (85, 234194), (95, 209542), (170, 117097), (190, 104771), (323, 61630), (646, 30815), (1615, 12326), (3230, 6163)]