172728780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{411259}}^1$

素因数の和:411278

約数の個数: 48

約数和(自身を含む): 552733440

約数和(自身を除く): 380004660

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, 411259, 822518, 1233777, 1645036, 2056295, 2467554, 2878813, 4112590, 4935108, 5757626, 6168885, 8225180, 8636439, 11515252, 12337770, 14394065, 17272878, 24675540, 28788130, 34545756, 43182195, 57576260, 86364390, 172728780]

約数ペア:

[(1, 172728780), (2, 86364390), (3, 57576260), (4, 43182195), (5, 34545756), (6, 28788130), (7, 24675540), (10, 17272878), (12, 14394065), (14, 12337770), (15, 11515252), (20, 8636439), (21, 8225180), (28, 6168885), (30, 5757626), (35, 4935108), (42, 4112590), (60, 2878813), (70, 2467554), (84, 2056295), (105, 1645036), (140, 1233777), (210, 822518), (420, 411259)]