42890055

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 78769152

約数和(自身を除く): 35879097

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 73, 115, 131, 195, 219, 299, 345, 365, 393, 655, 897, 949, 1095, 1495, 1679, 1703, 1965, 2847, 3013, 4485, 4745, 5037, 5109, 8395, 8515, 9039, 9563, 14235, 15065, 21827, 25185, 25545, 28689, 39169, 45195, 47815, 65481, 109135, 117507, 124319, 143445, 195845, 219949, 327405, 372957, 587535, 621595, 659847, 1099745, 1864785, 2859337, 3299235, 8578011, 14296685, 42890055]

約数ペア:

[(1, 42890055), (3, 14296685), (5, 8578011), (13, 3299235), (15, 2859337), (23, 1864785), (39, 1099745), (65, 659847), (69, 621595), (73, 587535), (115, 372957), (131, 327405), (195, 219949), (219, 195845), (299, 143445), (345, 124319), (365, 117507), (393, 109135), (655, 65481), (897, 47815), (949, 45195), (1095, 39169), (1495, 28689), (1679, 25545), (1703, 25185), (1965, 21827), (2847, 15065), (3013, 14235), (4485, 9563), (4745, 9039), (5037, 8515), (5109, 8395)]