388444706

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{953}}^1$

素因数の和:1286

約数の個数: 32

約数和(自身を含む): 640927728

約数和(自身を除く): 252483022

約数列:

[1, 2, 13, 26, 61, 122, 257, 514, 793, 953, 1586, 1906, 3341, 6682, 12389, 15677, 24778, 31354, 58133, 116266, 203801, 244921, 407602, 489842, 755729, 1511458, 3183973, 6367946, 14940181, 29880362, 194222353, 388444706]

約数ペア:

[(1, 388444706), (2, 194222353), (13, 29880362), (26, 14940181), (61, 6367946), (122, 3183973), (257, 1511458), (514, 755729), (793, 489842), (953, 407602), (1586, 244921), (1906, 203801), (3341, 116266), (6682, 58133), (12389, 31354), (15677, 24778)]