261708248

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{619}}^1\times {\mathrm{1289}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 503874000

約数和(自身を除く): 242165752

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 619, 1238, 1289, 2476, 2578, 4952, 5156, 10312, 25379, 50758, 52849, 101516, 105698, 203032, 211396, 422792, 797891, 1595782, 3191564, 6383128, 32713531, 65427062, 130854124, 261708248]

約数ペア:

[(1, 261708248), (2, 130854124), (4, 65427062), (8, 32713531), (41, 6383128), (82, 3191564), (164, 1595782), (328, 797891), (619, 422792), (1238, 211396), (1289, 203032), (2476, 105698), (2578, 101516), (4952, 52849), (5156, 50758), (10312, 25379)]