20873864560

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2689931}}^1$

素因数の和:2690041

約数の個数: 40

約数和(自身を含む): 49032080496

約数和(自身を除く): 28158215936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 2689931, 5379862, 10759724, 13449655, 21519448, 26899310, 43038896, 53798620, 107597240, 215194480, 260923307, 521846614, 1043693228, 1304616535, 2087386456, 2609233070, 4174772912, 5218466140, 10436932280, 20873864560]

約数ペア:

[(1, 20873864560), (2, 10436932280), (4, 5218466140), (5, 4174772912), (8, 2609233070), (10, 2087386456), (16, 1304616535), (20, 1043693228), (40, 521846614), (80, 260923307), (97, 215194480), (194, 107597240), (388, 53798620), (485, 43038896), (776, 26899310), (970, 21519448), (1552, 13449655), (1940, 10759724), (3880, 5379862), (7760, 2689931)]