28663980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20771}}^1$

素因数の和:20806

約数の個数: 48

約数和(自身を含む): 83752704

約数和(自身を除く): 55088724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 20771, 41542, 62313, 83084, 103855, 124626, 207710, 249252, 311565, 415420, 477733, 623130, 955466, 1246260, 1433199, 1910932, 2388665, 2866398, 4777330, 5732796, 7165995, 9554660, 14331990, 28663980]

約数ペア:

[(1, 28663980), (2, 14331990), (3, 9554660), (4, 7165995), (5, 5732796), (6, 4777330), (10, 2866398), (12, 2388665), (15, 1910932), (20, 1433199), (23, 1246260), (30, 955466), (46, 623130), (60, 477733), (69, 415420), (92, 311565), (115, 249252), (138, 207710), (230, 124626), (276, 103855), (345, 83084), (460, 62313), (690, 41542), (1380, 20771)]