789968720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139079}}^1$

素因数の和:139163

約数の個数: 40

約数和(自身を含む): 1862559360

約数和(自身を除く): 1072590640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 139079, 278158, 556316, 695395, 1112632, 1390790, 2225264, 2781580, 5563160, 9874609, 11126320, 19749218, 39498436, 49373045, 78996872, 98746090, 157993744, 197492180, 394984360, 789968720]

約数ペア:

[(1, 789968720), (2, 394984360), (4, 197492180), (5, 157993744), (8, 98746090), (10, 78996872), (16, 49373045), (20, 39498436), (40, 19749218), (71, 11126320), (80, 9874609), (142, 5563160), (284, 2781580), (355, 2225264), (568, 1390790), (710, 1112632), (1136, 695395), (1420, 556316), (2840, 278158), (5680, 139079)]