19996860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:883

約数の個数: 96

約数和(自身を含む): 62318592

約数和(自身を除く): 42321732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 827, 930, 1209, 1612, 1654, 1860, 2015, 2418, 2481, 3308, 4030, 4135, 4836, 4962, 6045, 8060, 8270, 9924, 10751, 12090, 12405, 16540, 21502, 24180, 24810, 25637, 32253, 43004, 49620, 51274, 53755, 64506, 76911, 102548, 107510, 128185, 129012, 153822, 161265, 215020, 256370, 307644, 322530, 333281, 384555, 512740, 645060, 666562, 769110, 999843, 1333124, 1538220, 1666405, 1999686, 3332810, 3999372, 4999215, 6665620, 9998430, 19996860]

約数ペア:

[(1, 19996860), (2, 9998430), (3, 6665620), (4, 4999215), (5, 3999372), (6, 3332810), (10, 1999686), (12, 1666405), (13, 1538220), (15, 1333124), (20, 999843), (26, 769110), (30, 666562), (31, 645060), (39, 512740), (52, 384555), (60, 333281), (62, 322530), (65, 307644), (78, 256370), (93, 215020), (124, 161265), (130, 153822), (155, 129012), (156, 128185), (186, 107510), (195, 102548), (260, 76911), (310, 64506), (372, 53755), (390, 51274), (403, 49620), (465, 43004), (620, 32253), (780, 25637), (806, 24810), (827, 24180), (930, 21502), (1209, 16540), (1612, 12405), (1654, 12090), (1860, 10751), (2015, 9924), (2418, 8270), (2481, 8060), (3308, 6045), (4030, 4962), (4135, 4836)]