15625805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 21772800

約数和(自身を除く): 6146995

約数列:

[1, 5, 13, 17, 65, 79, 85, 179, 221, 395, 895, 1027, 1105, 1343, 2327, 3043, 5135, 6715, 11635, 14141, 15215, 17459, 39559, 70705, 87295, 183833, 197795, 240397, 919165, 1201985, 3125161, 15625805]

約数ペア:

[(1, 15625805), (5, 3125161), (13, 1201985), (17, 919165), (65, 240397), (79, 197795), (85, 183833), (179, 87295), (221, 70705), (395, 39559), (895, 17459), (1027, 15215), (1105, 14141), (1343, 11635), (2327, 6715), (3043, 5135)]