208339915

素因数分解:

$5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:185

約数の個数: 64

約数和(自身を含む): 311040000

約数和(自身を除く): 102700085

約数列:

[1, 5, 7, 29, 35, 49, 59, 71, 145, 203, 245, 295, 343, 355, 413, 497, 1015, 1421, 1711, 1715, 2059, 2065, 2485, 2891, 3479, 4189, 7105, 8555, 9947, 10295, 11977, 14413, 14455, 17395, 20237, 20945, 24353, 29323, 49735, 59885, 72065, 83839, 100891, 101185, 121481, 121765, 146615, 205261, 419195, 504455, 586873, 607405, 706237, 850367, 1026305, 1436827, 2934365, 3531185, 4251835, 5952569, 7184135, 29762845, 41667983, 208339915]

約数ペア:

[(1, 208339915), (5, 41667983), (7, 29762845), (29, 7184135), (35, 5952569), (49, 4251835), (59, 3531185), (71, 2934365), (145, 1436827), (203, 1026305), (245, 850367), (295, 706237), (343, 607405), (355, 586873), (413, 504455), (497, 419195), (1015, 205261), (1421, 146615), (1711, 121765), (1715, 121481), (2059, 101185), (2065, 100891), (2485, 83839), (2891, 72065), (3479, 59885), (4189, 49735), (7105, 29323), (8555, 24353), (9947, 20945), (10295, 20237), (11977, 17395), (14413, 14455)]