20139420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47951}}^1$

素因数の和:47970

約数の個数: 48

約数和(自身を含む): 64447488

約数和(自身を除く): 44308068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47951, 95902, 143853, 191804, 239755, 287706, 335657, 479510, 575412, 671314, 719265, 959020, 1006971, 1342628, 1438530, 1678285, 2013942, 2877060, 3356570, 4027884, 5034855, 6713140, 10069710, 20139420]

約数ペア:

[(1, 20139420), (2, 10069710), (3, 6713140), (4, 5034855), (5, 4027884), (6, 3356570), (7, 2877060), (10, 2013942), (12, 1678285), (14, 1438530), (15, 1342628), (20, 1006971), (21, 959020), (28, 719265), (30, 671314), (35, 575412), (42, 479510), (60, 335657), (70, 287706), (84, 239755), (105, 191804), (140, 143853), (210, 95902), (420, 47951)]