123166540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12391}}^1$

素因数の和:12478

約数の個数: 48

約数和(自身を含む): 299787264

約数和(自身を除く): 176620724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 12391, 24782, 49564, 61955, 86737, 123910, 173474, 247820, 346948, 433685, 867370, 879761, 1734740, 1759522, 3519044, 4398805, 6158327, 8797610, 12316654, 17595220, 24633308, 30791635, 61583270, 123166540]

約数ペア:

[(1, 123166540), (2, 61583270), (4, 30791635), (5, 24633308), (7, 17595220), (10, 12316654), (14, 8797610), (20, 6158327), (28, 4398805), (35, 3519044), (70, 1759522), (71, 1734740), (140, 879761), (142, 867370), (284, 433685), (355, 346948), (497, 247820), (710, 173474), (994, 123910), (1420, 86737), (1988, 61955), (2485, 49564), (4970, 24782), (9940, 12391)]