8381205

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{181}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 17472000

約数和(自身を除く): 9090795

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 181, 189, 245, 315, 343, 441, 543, 735, 905, 945, 1029, 1267, 1323, 1629, 1715, 2205, 2715, 3087, 3801, 4887, 5145, 6335, 6615, 8145, 8869, 9261, 11403, 15435, 19005, 24435, 26607, 34209, 44345, 46305, 57015, 62083, 79821, 133035, 171045, 186249, 239463, 310415, 399105, 558747, 931245, 1197315, 1676241, 2793735, 8381205]

約数ペア:

[(1, 8381205), (3, 2793735), (5, 1676241), (7, 1197315), (9, 931245), (15, 558747), (21, 399105), (27, 310415), (35, 239463), (45, 186249), (49, 171045), (63, 133035), (105, 79821), (135, 62083), (147, 57015), (181, 46305), (189, 44345), (245, 34209), (315, 26607), (343, 24435), (441, 19005), (543, 15435), (735, 11403), (905, 9261), (945, 8869), (1029, 8145), (1267, 6615), (1323, 6335), (1629, 5145), (1715, 4887), (2205, 3801), (2715, 3087)]