205102705

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 269166240

約数和(自身を除く): 64063535

約数列:

[1, 5, 17, 41, 85, 205, 229, 257, 697, 1145, 1285, 3485, 3893, 4369, 9389, 10537, 19465, 21845, 46945, 52685, 58853, 159613, 179129, 294265, 798065, 895645, 1000501, 2412973, 5002505, 12064865, 41020541, 205102705]

約数ペア:

[(1, 205102705), (5, 41020541), (17, 12064865), (41, 5002505), (85, 2412973), (205, 1000501), (229, 895645), (257, 798065), (697, 294265), (1145, 179129), (1285, 159613), (3485, 58853), (3893, 52685), (4369, 46945), (9389, 21845), (10537, 19465)]