15972385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 22861440

約数和(自身を除く): 6889055

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 251, 445, 715, 979, 1157, 1255, 2761, 3263, 4895, 5785, 12727, 13805, 16315, 22339, 35893, 63635, 111695, 179465, 245729, 290407, 1228645, 1452035, 3194477, 15972385]

約数ペア:

[(1, 15972385), (5, 3194477), (11, 1452035), (13, 1228645), (55, 290407), (65, 245729), (89, 179465), (143, 111695), (251, 63635), (445, 35893), (715, 22339), (979, 16315), (1157, 13805), (1255, 12727), (2761, 5785), (3263, 4895)]