25707640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{91813}}^1$

素因数の和:91831

約数の個数: 32

約数和(自身を含む): 66106080

約数和(自身を除く): 40398440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 91813, 183626, 367252, 459065, 642691, 734504, 918130, 1285382, 1836260, 2570764, 3213455, 3672520, 5141528, 6426910, 12853820, 25707640]

約数ペア:

[(1, 25707640), (2, 12853820), (4, 6426910), (5, 5141528), (7, 3672520), (8, 3213455), (10, 2570764), (14, 1836260), (20, 1285382), (28, 918130), (35, 734504), (40, 642691), (56, 459065), (70, 367252), (140, 183626), (280, 91813)]