18916700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 46403280

約数和(自身を除く): 27486580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 593, 638, 725, 1100, 1186, 1276, 1450, 1595, 2372, 2900, 2965, 3190, 5930, 6380, 6523, 7975, 11860, 13046, 14825, 15950, 17197, 26092, 29650, 31900, 32615, 34394, 59300, 65230, 68788, 85985, 130460, 163075, 171970, 189167, 326150, 343940, 378334, 429925, 652300, 756668, 859850, 945835, 1719700, 1891670, 3783340, 4729175, 9458350, 18916700]

約数ペア:

[(1, 18916700), (2, 9458350), (4, 4729175), (5, 3783340), (10, 1891670), (11, 1719700), (20, 945835), (22, 859850), (25, 756668), (29, 652300), (44, 429925), (50, 378334), (55, 343940), (58, 326150), (100, 189167), (110, 171970), (116, 163075), (145, 130460), (220, 85985), (275, 68788), (290, 65230), (319, 59300), (550, 34394), (580, 32615), (593, 31900), (638, 29650), (725, 26092), (1100, 17197), (1186, 15950), (1276, 14825), (1450, 13046), (1595, 11860), (2372, 7975), (2900, 6523), (2965, 6380), (3190, 5930)]