2005980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 5712000

約数和(自身を除く): 3706020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 499, 670, 804, 998, 1005, 1340, 1497, 1996, 2010, 2495, 2994, 4020, 4990, 5988, 7485, 9980, 14970, 29940, 33433, 66866, 100299, 133732, 167165, 200598, 334330, 401196, 501495, 668660, 1002990, 2005980]

約数ペア:

[(1, 2005980), (2, 1002990), (3, 668660), (4, 501495), (5, 401196), (6, 334330), (10, 200598), (12, 167165), (15, 133732), (20, 100299), (30, 66866), (60, 33433), (67, 29940), (134, 14970), (201, 9980), (268, 7485), (335, 5988), (402, 4990), (499, 4020), (670, 2994), (804, 2495), (998, 2010), (1005, 1996), (1340, 1497)]