61788280

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11113}}^1$

素因数の和:11263

約数の個数: 32

約数和(自身を含む): 140036400

約数和(自身を除く): 78248120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 11113, 22226, 44452, 55565, 88904, 111130, 222260, 444520, 1544707, 3089414, 6178828, 7723535, 12357656, 15447070, 30894140, 61788280]

約数ペア:

[(1, 61788280), (2, 30894140), (4, 15447070), (5, 12357656), (8, 7723535), (10, 6178828), (20, 3089414), (40, 1544707), (139, 444520), (278, 222260), (556, 111130), (695, 88904), (1112, 55565), (1390, 44452), (2780, 22226), (5560, 11113)]