291416642

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 514550400

約数和(自身を除く): 223133758

約数列:

[1, 2, 11, 19, 22, 38, 61, 121, 122, 209, 242, 418, 671, 1039, 1159, 1342, 2078, 2299, 2318, 4598, 7381, 11429, 12749, 14762, 19741, 22858, 25498, 39482, 63379, 125719, 126758, 140239, 217151, 251438, 280478, 434302, 697169, 1204201, 1394338, 2388661, 2408402, 4777322, 7668859, 13246211, 15337718, 26492422, 145708321, 291416642]

約数ペア:

[(1, 291416642), (2, 145708321), (11, 26492422), (19, 15337718), (22, 13246211), (38, 7668859), (61, 4777322), (121, 2408402), (122, 2388661), (209, 1394338), (242, 1204201), (418, 697169), (671, 434302), (1039, 280478), (1159, 251438), (1342, 217151), (2078, 140239), (2299, 126758), (2318, 125719), (4598, 63379), (7381, 39482), (11429, 25498), (12749, 22858), (14762, 19741)]