19929840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11863}}^1$

素因数の和:11886

約数の個数: 80

約数和(自身を含む): 70614528

約数和(自身を除く): 50684688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11863, 23726, 35589, 47452, 59315, 71178, 83041, 94904, 118630, 142356, 166082, 177945, 189808, 237260, 249123, 284712, 332164, 355890, 415205, 474520, 498246, 569424, 664328, 711780, 830410, 949040, 996492, 1245615, 1328656, 1423560, 1660820, 1992984, 2491230, 2847120, 3321640, 3985968, 4982460, 6643280, 9964920, 19929840]

約数ペア:

[(1, 19929840), (2, 9964920), (3, 6643280), (4, 4982460), (5, 3985968), (6, 3321640), (7, 2847120), (8, 2491230), (10, 1992984), (12, 1660820), (14, 1423560), (15, 1328656), (16, 1245615), (20, 996492), (21, 949040), (24, 830410), (28, 711780), (30, 664328), (35, 569424), (40, 498246), (42, 474520), (48, 415205), (56, 355890), (60, 332164), (70, 284712), (80, 249123), (84, 237260), (105, 189808), (112, 177945), (120, 166082), (140, 142356), (168, 118630), (210, 94904), (240, 83041), (280, 71178), (336, 59315), (420, 47452), (560, 35589), (840, 23726), (1680, 11863)]