21122240

素因数分解:

$2^6\times 5^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:609

約数の個数: 56

約数和(自身を含む): 50749200

約数和(自身を除く): 29626960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 149, 160, 298, 320, 443, 596, 745, 886, 1192, 1490, 1772, 2215, 2384, 2980, 3544, 4430, 4768, 5960, 7088, 8860, 9536, 11920, 14176, 17720, 23840, 28352, 35440, 47680, 66007, 70880, 132014, 141760, 264028, 330035, 528056, 660070, 1056112, 1320140, 2112224, 2640280, 4224448, 5280560, 10561120, 21122240]

約数ペア:

[(1, 21122240), (2, 10561120), (4, 5280560), (5, 4224448), (8, 2640280), (10, 2112224), (16, 1320140), (20, 1056112), (32, 660070), (40, 528056), (64, 330035), (80, 264028), (149, 141760), (160, 132014), (298, 70880), (320, 66007), (443, 47680), (596, 35440), (745, 28352), (886, 23840), (1192, 17720), (1490, 14176), (1772, 11920), (2215, 9536), (2384, 8860), (2980, 7088), (3544, 5960), (4430, 4768)]