217874320

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{10597}}^1$

素因数の和:10867

約数の個数: 40

約数和(自身を含む): 508576824

約数和(自身を除く): 290702504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 10597, 20560, 21194, 42388, 52985, 84776, 105970, 169552, 211940, 423880, 847760, 2723429, 5446858, 10893716, 13617145, 21787432, 27234290, 43574864, 54468580, 108937160, 217874320]

約数ペア:

[(1, 217874320), (2, 108937160), (4, 54468580), (5, 43574864), (8, 27234290), (10, 21787432), (16, 13617145), (20, 10893716), (40, 5446858), (80, 2723429), (257, 847760), (514, 423880), (1028, 211940), (1285, 169552), (2056, 105970), (2570, 84776), (4112, 52985), (5140, 42388), (10280, 21194), (10597, 20560)]