20605680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28619}}^1$

素因数の和:28638

約数の個数: 60

約数和(自身を含む): 69203160

約数和(自身を除く): 48597480

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, 28619, 57238, 85857, 114476, 143095, 171714, 228952, 257571, 286190, 343428, 429285, 457904, 515142, 572380, 686856, 858570, 1030284, 1144760, 1287855, 1373712, 1717140, 2060568, 2289520, 2575710, 3434280, 4121136, 5151420, 6868560, 10302840, 20605680]

約数ペア:

[(1, 20605680), (2, 10302840), (3, 6868560), (4, 5151420), (5, 4121136), (6, 3434280), (8, 2575710), (9, 2289520), (10, 2060568), (12, 1717140), (15, 1373712), (16, 1287855), (18, 1144760), (20, 1030284), (24, 858570), (30, 686856), (36, 572380), (40, 515142), (45, 457904), (48, 429285), (60, 343428), (72, 286190), (80, 257571), (90, 228952), (120, 171714), (144, 143095), (180, 114476), (240, 85857), (360, 57238), (720, 28619)]