28987015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 38486016

約数和(自身を除く): 9499001

約数列:

[1, 5, 23, 31, 47, 115, 155, 173, 235, 713, 865, 1081, 1457, 3565, 3979, 5363, 5405, 7285, 8131, 19895, 26815, 33511, 40655, 123349, 167555, 187013, 252061, 616745, 935065, 1260305, 5797403, 28987015]

約数ペア:

[(1, 28987015), (5, 5797403), (23, 1260305), (31, 935065), (47, 616745), (115, 252061), (155, 187013), (173, 167555), (235, 123349), (713, 40655), (865, 33511), (1081, 26815), (1457, 19895), (3565, 8131), (3979, 7285), (5363, 5405)]