690830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 32

約数和(自身を含む): 1451520

約数和(自身を除く): 760690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 139, 142, 278, 355, 497, 695, 710, 973, 994, 1390, 1946, 2485, 4865, 4970, 9730, 9869, 19738, 49345, 69083, 98690, 138166, 345415, 690830]

約数ペア:

[(1, 690830), (2, 345415), (5, 138166), (7, 98690), (10, 69083), (14, 49345), (35, 19738), (70, 9869), (71, 9730), (139, 4970), (142, 4865), (278, 2485), (355, 1946), (497, 1390), (695, 994), (710, 973)]