201125820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{478871}}^1$

素因数の和:478890

約数の個数: 48

約数和(自身を含む): 643603968

約数和(自身を除く): 442478148

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, 478871, 957742, 1436613, 1915484, 2394355, 2873226, 3352097, 4788710, 5746452, 6704194, 7183065, 9577420, 10056291, 13408388, 14366130, 16760485, 20112582, 28732260, 33520970, 40225164, 50281455, 67041940, 100562910, 201125820]

約数ペア:

[(1, 201125820), (2, 100562910), (3, 67041940), (4, 50281455), (5, 40225164), (6, 33520970), (7, 28732260), (10, 20112582), (12, 16760485), (14, 14366130), (15, 13408388), (20, 10056291), (21, 9577420), (28, 7183065), (30, 6704194), (35, 5746452), (42, 4788710), (60, 3352097), (70, 2873226), (84, 2394355), (105, 1915484), (140, 1436613), (210, 957742), (420, 478871)]