19149320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15443}}^1$

素因数の和:15485

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 25329400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15443, 30886, 61772, 77215, 123544, 154430, 308860, 478733, 617720, 957466, 1914932, 2393665, 3829864, 4787330, 9574660, 19149320]

約数ペア:

[(1, 19149320), (2, 9574660), (4, 4787330), (5, 3829864), (8, 2393665), (10, 1914932), (20, 957466), (31, 617720), (40, 478733), (62, 308860), (124, 154430), (155, 123544), (248, 77215), (310, 61772), (620, 30886), (1240, 15443)]