278364410

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{1217}}^1$

素因数の和:1570

約数の個数: 32

約数和(自身を含む): 509075280

約数和(自身を除く): 230710870

約数列:

[1, 2, 5, 10, 89, 178, 257, 445, 514, 890, 1217, 1285, 2434, 2570, 6085, 12170, 22873, 45746, 108313, 114365, 216626, 228730, 312769, 541565, 625538, 1083130, 1563845, 3127690, 27836441, 55672882, 139182205, 278364410]

約数ペア:

[(1, 278364410), (2, 139182205), (5, 55672882), (10, 27836441), (89, 3127690), (178, 1563845), (257, 1083130), (445, 625538), (514, 541565), (890, 312769), (1217, 228730), (1285, 216626), (2434, 114365), (2570, 108313), (6085, 45746), (12170, 22873)]