28272855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 51649920

約数和(自身を除く): 23377065

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 169, 195, 247, 285, 507, 587, 741, 845, 1235, 1761, 2535, 2935, 3211, 3705, 7631, 8805, 9633, 11153, 16055, 22893, 33459, 38155, 48165, 55765, 99203, 114465, 144989, 167295, 297609, 434967, 496015, 724945, 1488045, 1884857, 2174835, 5654571, 9424285, 28272855]

約数ペア:

[(1, 28272855), (3, 9424285), (5, 5654571), (13, 2174835), (15, 1884857), (19, 1488045), (39, 724945), (57, 496015), (65, 434967), (95, 297609), (169, 167295), (195, 144989), (247, 114465), (285, 99203), (507, 55765), (587, 48165), (741, 38155), (845, 33459), (1235, 22893), (1761, 16055), (2535, 11153), (2935, 9633), (3211, 8805), (3705, 7631)]