20665680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12301}}^1$

素因数の和:12324

約数の個数: 80

約数和(自身を含む): 73221504

約数和(自身を除く): 52555824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12301, 24602, 36903, 49204, 61505, 73806, 86107, 98408, 123010, 147612, 172214, 184515, 196816, 246020, 258321, 295224, 344428, 369030, 430535, 492040, 516642, 590448, 688856, 738060, 861070, 984080, 1033284, 1291605, 1377712, 1476120, 1722140, 2066568, 2583210, 2952240, 3444280, 4133136, 5166420, 6888560, 10332840, 20665680]

約数ペア:

[(1, 20665680), (2, 10332840), (3, 6888560), (4, 5166420), (5, 4133136), (6, 3444280), (7, 2952240), (8, 2583210), (10, 2066568), (12, 1722140), (14, 1476120), (15, 1377712), (16, 1291605), (20, 1033284), (21, 984080), (24, 861070), (28, 738060), (30, 688856), (35, 590448), (40, 516642), (42, 492040), (48, 430535), (56, 369030), (60, 344428), (70, 295224), (80, 258321), (84, 246020), (105, 196816), (112, 184515), (120, 172214), (140, 147612), (168, 123010), (210, 98408), (240, 86107), (280, 73806), (336, 61505), (420, 49204), (560, 36903), (840, 24602), (1680, 12301)]