13279245

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 25920000

約数和(自身を除く): 12640755

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 89, 105, 145, 147, 203, 245, 267, 343, 435, 445, 609, 623, 735, 1015, 1029, 1335, 1421, 1715, 1869, 2581, 3045, 3115, 4263, 4361, 5145, 7105, 7743, 9345, 9947, 12905, 13083, 18067, 21315, 21805, 29841, 30527, 38715, 49735, 54201, 65415, 90335, 91581, 126469, 149205, 152635, 271005, 379407, 457905, 632345, 885283, 1897035, 2655849, 4426415, 13279245]

約数ペア:

[(1, 13279245), (3, 4426415), (5, 2655849), (7, 1897035), (15, 885283), (21, 632345), (29, 457905), (35, 379407), (49, 271005), (87, 152635), (89, 149205), (105, 126469), (145, 91581), (147, 90335), (203, 65415), (245, 54201), (267, 49735), (343, 38715), (435, 30527), (445, 29841), (609, 21805), (623, 21315), (735, 18067), (1015, 13083), (1029, 12905), (1335, 9947), (1421, 9345), (1715, 7743), (1869, 7105), (2581, 5145), (3045, 4361), (3115, 4263)]