3990325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 5390280

約数和(自身を除く): 1399955

約数列:

[1, 5, 17, 25, 41, 85, 205, 229, 425, 697, 1025, 1145, 3485, 3893, 5725, 9389, 17425, 19465, 46945, 97325, 159613, 234725, 798065, 3990325]

約数ペア:

[(1, 3990325), (5, 798065), (17, 234725), (25, 159613), (41, 97325), (85, 46945), (205, 19465), (229, 17425), (425, 9389), (697, 5725), (1025, 3893), (1145, 3485)]