28639140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20753}}^1$

素因数の和:20788

約数の個数: 48

約数和(自身を含む): 83680128

約数和(自身を除く): 55040988

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, 20753, 41506, 62259, 83012, 103765, 124518, 207530, 249036, 311295, 415060, 477319, 622590, 954638, 1245180, 1431957, 1909276, 2386595, 2863914, 4773190, 5727828, 7159785, 9546380, 14319570, 28639140]

約数ペア:

[(1, 28639140), (2, 14319570), (3, 9546380), (4, 7159785), (5, 5727828), (6, 4773190), (10, 2863914), (12, 2386595), (15, 1909276), (20, 1431957), (23, 1245180), (30, 954638), (46, 622590), (60, 477319), (69, 415060), (92, 311295), (115, 249036), (138, 207530), (230, 124518), (276, 103765), (345, 83012), (460, 62259), (690, 41506), (1380, 20753)]