28237755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 56383488

約数和(自身を除く): 28145733

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 137, 151, 195, 273, 411, 453, 455, 685, 755, 959, 1057, 1365, 1781, 1963, 2055, 2265, 2877, 3171, 4795, 5285, 5343, 5889, 8905, 9815, 12467, 13741, 14385, 15855, 20687, 26715, 29445, 37401, 41223, 62061, 62335, 68705, 103435, 144809, 187005, 206115, 268931, 310305, 434427, 724045, 806793, 1344655, 1882517, 2172135, 4033965, 5647551, 9412585, 28237755]

約数ペア:

[(1, 28237755), (3, 9412585), (5, 5647551), (7, 4033965), (13, 2172135), (15, 1882517), (21, 1344655), (35, 806793), (39, 724045), (65, 434427), (91, 310305), (105, 268931), (137, 206115), (151, 187005), (195, 144809), (273, 103435), (411, 68705), (453, 62335), (455, 62061), (685, 41223), (755, 37401), (959, 29445), (1057, 26715), (1365, 20687), (1781, 15855), (1963, 14385), (2055, 13741), (2265, 12467), (2877, 9815), (3171, 8905), (4795, 5889), (5285, 5343)]