12995905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 18748800

約数和(自身を除く): 5752895

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 619, 1105, 1235, 1615, 3095, 4199, 8047, 10523, 11761, 20995, 40235, 52615, 58805, 136799, 152893, 199937, 683995, 764465, 999685, 2599181, 12995905]

約数ペア:

[(1, 12995905), (5, 2599181), (13, 999685), (17, 764465), (19, 683995), (65, 199937), (85, 152893), (95, 136799), (221, 58805), (247, 52615), (323, 40235), (619, 20995), (1105, 11761), (1235, 10523), (1615, 8047), (3095, 4199)]