278324260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{196003}}^1$

素因数の和:196083

約数の個数: 24

約数和(自身を含む): 592716096

約数和(自身を除く): 314391836

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 196003, 392006, 784012, 980015, 1960030, 3920060, 13916213, 27832426, 55664852, 69581065, 139162130, 278324260]

約数ペア:

[(1, 278324260), (2, 139162130), (4, 69581065), (5, 55664852), (10, 27832426), (20, 13916213), (71, 3920060), (142, 1960030), (284, 980015), (355, 784012), (710, 392006), (1420, 196003)]