680778868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2210321}}^1$

素因数の和:2210343

約数の個数: 24

約数和(自身を含む): 1485336384

約数和(自身を除く): 804557516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 2210321, 4420642, 8841284, 15472247, 24313531, 30944494, 48627062, 61888988, 97254124, 170194717, 340389434, 680778868]

約数ペア:

[(1, 680778868), (2, 340389434), (4, 170194717), (7, 97254124), (11, 61888988), (14, 48627062), (22, 30944494), (28, 24313531), (44, 15472247), (77, 8841284), (154, 4420642), (308, 2210321)]