278698510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{6379}}^1$

素因数の和:6660

約数の個数: 32

約数和(自身を含む): 533316960

約数和(自身を除く): 254618450

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 257, 514, 1285, 2570, 4369, 6379, 8738, 12758, 21845, 31895, 43690, 63790, 108443, 216886, 542215, 1084430, 1639403, 3278806, 8197015, 16394030, 27869851, 55739702, 139349255, 278698510]

約数ペア:

[(1, 278698510), (2, 139349255), (5, 55739702), (10, 27869851), (17, 16394030), (34, 8197015), (85, 3278806), (170, 1639403), (257, 1084430), (514, 542215), (1285, 216886), (2570, 108443), (4369, 63790), (6379, 43690), (8738, 31895), (12758, 21845)]