18125965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 25909632

約数和(自身を除く): 7783667

約数列:

[1, 5, 11, 13, 55, 65, 101, 143, 251, 505, 715, 1111, 1255, 1313, 2761, 3263, 5555, 6565, 13805, 14443, 16315, 25351, 35893, 72215, 126755, 179465, 278861, 329563, 1394305, 1647815, 3625193, 18125965]

約数ペア:

[(1, 18125965), (5, 3625193), (11, 1647815), (13, 1394305), (55, 329563), (65, 278861), (101, 179465), (143, 126755), (251, 72215), (505, 35893), (715, 25351), (1111, 16315), (1255, 14443), (1313, 13805), (2761, 6565), (3263, 5555)]