13041980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4903}}^1$

素因数の和:4938

約数の個数: 48

約数和(自身を含む): 32954880

約数和(自身を除く): 19912900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 4903, 9806, 19612, 24515, 34321, 49030, 68642, 93157, 98060, 137284, 171605, 186314, 343210, 372628, 465785, 652099, 686420, 931570, 1304198, 1863140, 2608396, 3260495, 6520990, 13041980]

約数ペア:

[(1, 13041980), (2, 6520990), (4, 3260495), (5, 2608396), (7, 1863140), (10, 1304198), (14, 931570), (19, 686420), (20, 652099), (28, 465785), (35, 372628), (38, 343210), (70, 186314), (76, 171605), (95, 137284), (133, 98060), (140, 93157), (190, 68642), (266, 49030), (380, 34321), (532, 24515), (665, 19612), (1330, 9806), (2660, 4903)]