20595418890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{389401}}^1$

素因数の和:389495

約数の個数: 64

約数和(自身を含む): 51812272512

約数和(自身を除く): 31216853622

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 43, 82, 86, 123, 129, 205, 215, 246, 258, 410, 430, 615, 645, 1230, 1290, 1763, 3526, 5289, 8815, 10578, 17630, 26445, 52890, 389401, 778802, 1168203, 1947005, 2336406, 3894010, 5841015, 11682030, 15965441, 16744243, 31930882, 33488486, 47896323, 50232729, 79827205, 83721215, 95792646, 100465458, 159654410, 167442430, 239481615, 251163645, 478963230, 502327290, 686513963, 1373027926, 2059541889, 3432569815, 4119083778, 6865139630, 10297709445, 20595418890]

約数ペア:

[(1, 20595418890), (2, 10297709445), (3, 6865139630), (5, 4119083778), (6, 3432569815), (10, 2059541889), (15, 1373027926), (30, 686513963), (41, 502327290), (43, 478963230), (82, 251163645), (86, 239481615), (123, 167442430), (129, 159654410), (205, 100465458), (215, 95792646), (246, 83721215), (258, 79827205), (410, 50232729), (430, 47896323), (615, 33488486), (645, 31930882), (1230, 16744243), (1290, 15965441), (1763, 11682030), (3526, 5841015), (5289, 3894010), (8815, 2336406), (10578, 1947005), (17630, 1168203), (26445, 778802), (52890, 389401)]