39805220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21871}}^1$

素因数の和:21900

約数の個数: 48

約数和(自身を含む): 102885888

約数和(自身を除く): 63080668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21871, 43742, 87484, 109355, 153097, 218710, 284323, 306194, 437420, 568646, 612388, 765485, 1137292, 1421615, 1530970, 1990261, 2843230, 3061940, 3980522, 5686460, 7961044, 9951305, 19902610, 39805220]

約数ペア:

[(1, 39805220), (2, 19902610), (4, 9951305), (5, 7961044), (7, 5686460), (10, 3980522), (13, 3061940), (14, 2843230), (20, 1990261), (26, 1530970), (28, 1421615), (35, 1137292), (52, 765485), (65, 612388), (70, 568646), (91, 437420), (130, 306194), (140, 284323), (182, 218710), (260, 153097), (364, 109355), (455, 87484), (910, 43742), (1820, 21871)]