121128980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{123601}}^1$

素因数の和:123624

約数の個数: 36

約数和(自身を含む): 295903188

約数和(自身を除く): 174774208

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 123601, 247202, 494404, 618005, 865207, 1236010, 1730414, 2472020, 3460828, 4326035, 6056449, 8652070, 12112898, 17304140, 24225796, 30282245, 60564490, 121128980]

約数ペア:

[(1, 121128980), (2, 60564490), (4, 30282245), (5, 24225796), (7, 17304140), (10, 12112898), (14, 8652070), (20, 6056449), (28, 4326035), (35, 3460828), (49, 2472020), (70, 1730414), (98, 1236010), (140, 865207), (196, 618005), (245, 494404), (490, 247202), (980, 123601)]