257481796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{26479}}^1$

素因数の和:26524

約数の個数: 48

約数和(自身を含む): 560528640

約数和(自身を除く): 303046844

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2431, 4862, 9724, 26479, 52958, 105916, 291269, 344227, 450143, 582538, 688454, 900286, 1165076, 1376908, 1800572, 3786497, 4951573, 5851859, 7572994, 9903146, 11703718, 15145988, 19806292, 23407436, 64370449, 128740898, 257481796]

約数ペア:

[(1, 257481796), (2, 128740898), (4, 64370449), (11, 23407436), (13, 19806292), (17, 15145988), (22, 11703718), (26, 9903146), (34, 7572994), (44, 5851859), (52, 4951573), (68, 3786497), (143, 1800572), (187, 1376908), (221, 1165076), (286, 900286), (374, 688454), (442, 582538), (572, 450143), (748, 344227), (884, 291269), (2431, 105916), (4862, 52958), (9724, 26479)]