161635565

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2671}}^1$

素因数の和:2722

約数の個数: 48

約数和(自身を含む): 255870720

約数和(自身を除く): 94235155

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 637, 665, 931, 1235, 1729, 2671, 3185, 4655, 8645, 12103, 13355, 18697, 34723, 50749, 60515, 93485, 130879, 173615, 243061, 253745, 355243, 654395, 659737, 1215305, 1701427, 1776215, 2486701, 3298685, 4618159, 8507135, 12433505, 23090795, 32327113, 161635565]

約数ペア:

[(1, 161635565), (5, 32327113), (7, 23090795), (13, 12433505), (19, 8507135), (35, 4618159), (49, 3298685), (65, 2486701), (91, 1776215), (95, 1701427), (133, 1215305), (245, 659737), (247, 654395), (455, 355243), (637, 253745), (665, 243061), (931, 173615), (1235, 130879), (1729, 93485), (2671, 60515), (3185, 50749), (4655, 34723), (8645, 18697), (12103, 13355)]