280295906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{571}}^1$

素因数の和:1058

約数の個数: 32

約数和(自身を含む): 469250496

約数和(自身を除く): 188954590

約数列:

[1, 2, 11, 22, 53, 106, 421, 571, 583, 842, 1142, 1166, 4631, 6281, 9262, 12562, 22313, 30263, 44626, 60526, 240391, 245443, 332893, 480782, 490886, 665786, 2644301, 5288602, 12740723, 25481446, 140147953, 280295906]

約数ペア:

[(1, 280295906), (2, 140147953), (11, 25481446), (22, 12740723), (53, 5288602), (106, 2644301), (421, 665786), (571, 490886), (583, 480782), (842, 332893), (1142, 245443), (1166, 240391), (4631, 60526), (6281, 44626), (9262, 30263), (12562, 22313)]