28687555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 39997440

約数和(自身を除く): 11309885

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 619, 713, 1495, 2015, 3095, 3565, 8047, 9269, 14237, 19189, 40235, 46345, 71185, 95945, 185081, 249457, 441347, 925405, 1247285, 2206735, 5737511, 28687555]

約数ペア:

[(1, 28687555), (5, 5737511), (13, 2206735), (23, 1247285), (31, 925405), (65, 441347), (115, 249457), (155, 185081), (299, 95945), (403, 71185), (619, 46345), (713, 40235), (1495, 19189), (2015, 14237), (3095, 9269), (3565, 8047)]