20769420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49451}}^1$

素因数の和:49470

約数の個数: 48

約数和(自身を含む): 66463488

約数和(自身を除く): 45694068

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, 49451, 98902, 148353, 197804, 247255, 296706, 346157, 494510, 593412, 692314, 741765, 989020, 1038471, 1384628, 1483530, 1730785, 2076942, 2967060, 3461570, 4153884, 5192355, 6923140, 10384710, 20769420]

約数ペア:

[(1, 20769420), (2, 10384710), (3, 6923140), (4, 5192355), (5, 4153884), (6, 3461570), (7, 2967060), (10, 2076942), (12, 1730785), (14, 1483530), (15, 1384628), (20, 1038471), (21, 989020), (28, 741765), (30, 692314), (35, 593412), (42, 494510), (60, 346157), (70, 296706), (84, 247255), (105, 197804), (140, 148353), (210, 98902), (420, 49451)]