680820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1621}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 2179968

約数和(自身を除く): 1499148

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, 1621, 3242, 4863, 6484, 8105, 9726, 11347, 16210, 19452, 22694, 24315, 32420, 34041, 45388, 48630, 56735, 68082, 97260, 113470, 136164, 170205, 226940, 340410, 680820]

約数ペア:

[(1, 680820), (2, 340410), (3, 226940), (4, 170205), (5, 136164), (6, 113470), (7, 97260), (10, 68082), (12, 56735), (14, 48630), (15, 45388), (20, 34041), (21, 32420), (28, 24315), (30, 22694), (35, 19452), (42, 16210), (60, 11347), (70, 9726), (84, 8105), (105, 6484), (140, 4863), (210, 3242), (420, 1621)]