397768455

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{420919}}^1$

素因数の和:420940

約数の個数: 32

約数和(自身を含む): 808166400

約数和(自身を除く): 410397945

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 420919, 1262757, 2104595, 2946433, 3788271, 6313785, 8839299, 11364813, 14732165, 18941355, 26517897, 44196495, 56824065, 79553691, 132589485, 397768455]

約数ペア:

[(1, 397768455), (3, 132589485), (5, 79553691), (7, 56824065), (9, 44196495), (15, 26517897), (21, 18941355), (27, 14732165), (35, 11364813), (45, 8839299), (63, 6313785), (105, 3788271), (135, 2946433), (189, 2104595), (315, 1262757), (945, 420919)]