20714750

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 48016800

約数和(自身を除く): 27302050

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 49, 50, 70, 89, 95, 98, 125, 133, 175, 178, 190, 245, 250, 266, 350, 445, 475, 490, 623, 665, 875, 890, 931, 950, 1225, 1246, 1330, 1691, 1750, 1862, 2225, 2375, 2450, 3115, 3325, 3382, 4361, 4450, 4655, 4750, 6125, 6230, 6650, 8455, 8722, 9310, 11125, 11837, 12250, 15575, 16625, 16910, 21805, 22250, 23275, 23674, 31150, 33250, 42275, 43610, 46550, 59185, 77875, 82859, 84550, 109025, 116375, 118370, 155750, 165718, 211375, 218050, 232750, 295925, 414295, 422750, 545125, 591850, 828590, 1090250, 1479625, 2071475, 2959250, 4142950, 10357375, 20714750]

約数ペア:

[(1, 20714750), (2, 10357375), (5, 4142950), (7, 2959250), (10, 2071475), (14, 1479625), (19, 1090250), (25, 828590), (35, 591850), (38, 545125), (49, 422750), (50, 414295), (70, 295925), (89, 232750), (95, 218050), (98, 211375), (125, 165718), (133, 155750), (175, 118370), (178, 116375), (190, 109025), (245, 84550), (250, 82859), (266, 77875), (350, 59185), (445, 46550), (475, 43610), (490, 42275), (623, 33250), (665, 31150), (875, 23674), (890, 23275), (931, 22250), (950, 21805), (1225, 16910), (1246, 16625), (1330, 15575), (1691, 12250), (1750, 11837), (1862, 11125), (2225, 9310), (2375, 8722), (2450, 8455), (3115, 6650), (3325, 6230), (3382, 6125), (4361, 4750), (4450, 4655)]