2780004

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 6955200

約数和(自身を除く): 4175196

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 89, 114, 137, 178, 228, 267, 274, 356, 411, 534, 548, 822, 1068, 1644, 1691, 2603, 3382, 5073, 5206, 6764, 7809, 10146, 10412, 12193, 15618, 20292, 24386, 31236, 36579, 48772, 73158, 146316, 231667, 463334, 695001, 926668, 1390002, 2780004]

約数ペア:

[(1, 2780004), (2, 1390002), (3, 926668), (4, 695001), (6, 463334), (12, 231667), (19, 146316), (38, 73158), (57, 48772), (76, 36579), (89, 31236), (114, 24386), (137, 20292), (178, 15618), (228, 12193), (267, 10412), (274, 10146), (356, 7809), (411, 6764), (534, 5206), (548, 5073), (822, 3382), (1068, 2603), (1644, 1691)]