20712300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{1409}}^1$

素因数の和:1440

約数の個数: 108

約数和(自身を含む): 69761160

約数和(自身を除く): 49048860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 294, 300, 350, 420, 490, 525, 588, 700, 735, 980, 1050, 1225, 1409, 1470, 2100, 2450, 2818, 2940, 3675, 4227, 4900, 5636, 7045, 7350, 8454, 9863, 14090, 14700, 16908, 19726, 21135, 28180, 29589, 35225, 39452, 42270, 49315, 59178, 69041, 70450, 84540, 98630, 105675, 118356, 138082, 140900, 147945, 197260, 207123, 211350, 246575, 276164, 295890, 345205, 414246, 422700, 493150, 591780, 690410, 739725, 828492, 986300, 1035615, 1380820, 1479450, 1726025, 2071230, 2958900, 3452050, 4142460, 5178075, 6904100, 10356150, 20712300]

約数ペア:

[(1, 20712300), (2, 10356150), (3, 6904100), (4, 5178075), (5, 4142460), (6, 3452050), (7, 2958900), (10, 2071230), (12, 1726025), (14, 1479450), (15, 1380820), (20, 1035615), (21, 986300), (25, 828492), (28, 739725), (30, 690410), (35, 591780), (42, 493150), (49, 422700), (50, 414246), (60, 345205), (70, 295890), (75, 276164), (84, 246575), (98, 211350), (100, 207123), (105, 197260), (140, 147945), (147, 140900), (150, 138082), (175, 118356), (196, 105675), (210, 98630), (245, 84540), (294, 70450), (300, 69041), (350, 59178), (420, 49315), (490, 42270), (525, 39452), (588, 35225), (700, 29589), (735, 28180), (980, 21135), (1050, 19726), (1225, 16908), (1409, 14700), (1470, 14090), (2100, 9863), (2450, 8454), (2818, 7350), (2940, 7045), (3675, 5636), (4227, 4900)]