217668.0000000

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 12225816

約数和(自身を除く): 6719686

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 661, 833, 1190, 1322, 1666, 3305, 4165, 4627, 6610, 8330, 9254, 11237, 22474, 23135, 32389, 46270, 56185, 64778, 78659, 112370, 157318, 161945, 323890, 393295, 550613, 786590, 1101226, 2753065, 5506130]

約数ペア:

[(1, 5506130), (2, 2753065), (5, 1101226), (7, 786590), (10, 550613), (14, 393295), (17, 323890), (34, 161945), (35, 157318), (49, 112370), (70, 78659), (85, 64778), (98, 56185), (119, 46270), (170, 32389), (238, 23135), (245, 22474), (490, 11237), (595, 9254), (661, 8330), (833, 6610), (1190, 4627), (1322, 4165), (1666, 3305)]