280091231

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 340623360

約数和(自身を除く): 60532129

約数列:

[1, 7, 31, 59, 131, 167, 217, 413, 917, 1169, 1829, 4061, 5177, 7729, 9853, 12803, 21877, 28427, 36239, 54103, 68971, 153139, 239599, 305443, 678187, 1290743, 1677193, 2138101, 4747309, 9035201, 40013033, 280091231]

約数ペア:

[(1, 280091231), (7, 40013033), (31, 9035201), (59, 4747309), (131, 2138101), (167, 1677193), (217, 1290743), (413, 678187), (917, 305443), (1169, 239599), (1829, 153139), (4061, 68971), (5177, 54103), (7729, 36239), (9853, 28427), (12803, 21877)]