278811290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{3023}}^1$

素因数の和:3454

約数の個数: 32

約数和(自身を含む): 525159936

約数和(自身を除く): 246348646

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 401, 802, 2005, 3023, 4010, 6046, 9223, 15115, 18446, 30230, 46115, 69529, 92230, 139058, 347645, 695290, 1212223, 2424446, 6061115, 12122230, 27881129, 55762258, 139405645, 278811290]

約数ペア:

[(1, 278811290), (2, 139405645), (5, 55762258), (10, 27881129), (23, 12122230), (46, 6061115), (115, 2424446), (230, 1212223), (401, 695290), (802, 347645), (2005, 139058), (3023, 92230), (4010, 69529), (6046, 46115), (9223, 30230), (15115, 18446)]