20585520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28591}}^1$

素因数の和:28610

約数の個数: 60

約数和(自身を含む): 69135456

約数和(自身を除く): 48549936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28591, 57182, 85773, 114364, 142955, 171546, 228728, 257319, 285910, 343092, 428865, 457456, 514638, 571820, 686184, 857730, 1029276, 1143640, 1286595, 1372368, 1715460, 2058552, 2287280, 2573190, 3430920, 4117104, 5146380, 6861840, 10292760, 20585520]

約数ペア:

[(1, 20585520), (2, 10292760), (3, 6861840), (4, 5146380), (5, 4117104), (6, 3430920), (8, 2573190), (9, 2287280), (10, 2058552), (12, 1715460), (15, 1372368), (16, 1286595), (18, 1143640), (20, 1029276), (24, 857730), (30, 686184), (36, 571820), (40, 514638), (45, 457456), (48, 428865), (60, 343092), (72, 285910), (80, 257319), (90, 228728), (120, 171546), (144, 142955), (180, 114364), (240, 85773), (360, 57182), (720, 28591)]