38987715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 74995200

約数和(自身を除く): 36007485

約数列:

[1, 3, 5, 13, 15, 17, 19, 39, 51, 57, 65, 85, 95, 195, 221, 247, 255, 285, 323, 619, 663, 741, 969, 1105, 1235, 1615, 1857, 3095, 3315, 3705, 4199, 4845, 8047, 9285, 10523, 11761, 12597, 20995, 24141, 31569, 35283, 40235, 52615, 58805, 62985, 120705, 136799, 152893, 157845, 176415, 199937, 410397, 458679, 599811, 683995, 764465, 999685, 2051985, 2293395, 2599181, 2999055, 7797543, 12995905, 38987715]

約数ペア:

[(1, 38987715), (3, 12995905), (5, 7797543), (13, 2999055), (15, 2599181), (17, 2293395), (19, 2051985), (39, 999685), (51, 764465), (57, 683995), (65, 599811), (85, 458679), (95, 410397), (195, 199937), (221, 176415), (247, 157845), (255, 152893), (285, 136799), (323, 120705), (619, 62985), (663, 58805), (741, 52615), (969, 40235), (1105, 35283), (1235, 31569), (1615, 24141), (1857, 20995), (3095, 12597), (3315, 11761), (3705, 10523), (4199, 9285), (4845, 8047)]