128538320

素因数分解:

$2^4\times 5^1\times {\mathrm{607}}^1\times {\mathrm{2647}}^1$

素因数の和:3267

約数の個数: 40

約数和(自身を含む): 299457024

約数和(自身を除く): 170918704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 607, 1214, 2428, 2647, 3035, 4856, 5294, 6070, 9712, 10588, 12140, 13235, 21176, 24280, 26470, 42352, 48560, 52940, 105880, 211760, 1606729, 3213458, 6426916, 8033645, 12853832, 16067290, 25707664, 32134580, 64269160, 128538320]

約数ペア:

[(1, 128538320), (2, 64269160), (4, 32134580), (5, 25707664), (8, 16067290), (10, 12853832), (16, 8033645), (20, 6426916), (40, 3213458), (80, 1606729), (607, 211760), (1214, 105880), (2428, 52940), (2647, 48560), (3035, 42352), (4856, 26470), (5294, 24280), (6070, 21176), (9712, 13235), (10588, 12140)]