217535710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{72271}}^1$

素因数の和:72328

約数の個数: 32

約数和(自身を含む): 457915392

約数和(自身を除く): 240379682

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 72271, 144542, 361355, 505897, 722710, 1011794, 2529485, 3107653, 5058970, 6215306, 15538265, 21753571, 31076530, 43507142, 108767855, 217535710]

約数ペア:

[(1, 217535710), (2, 108767855), (5, 43507142), (7, 31076530), (10, 21753571), (14, 15538265), (35, 6215306), (43, 5058970), (70, 3107653), (86, 2529485), (215, 1011794), (301, 722710), (430, 505897), (602, 361355), (1505, 144542), (3010, 72271)]