20393040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2741}}^1$

素因数の和:2788

約数の個数: 80

約数和(自身を含む): 65281536

約数和(自身を除く): 44888496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2741, 3720, 5482, 7440, 8223, 10964, 13705, 16446, 21928, 27410, 32892, 41115, 43856, 54820, 65784, 82230, 84971, 109640, 131568, 164460, 169942, 219280, 254913, 328920, 339884, 424855, 509826, 657840, 679768, 849710, 1019652, 1274565, 1359536, 1699420, 2039304, 2549130, 3398840, 4078608, 5098260, 6797680, 10196520, 20393040]

約数ペア:

[(1, 20393040), (2, 10196520), (3, 6797680), (4, 5098260), (5, 4078608), (6, 3398840), (8, 2549130), (10, 2039304), (12, 1699420), (15, 1359536), (16, 1274565), (20, 1019652), (24, 849710), (30, 679768), (31, 657840), (40, 509826), (48, 424855), (60, 339884), (62, 328920), (80, 254913), (93, 219280), (120, 169942), (124, 164460), (155, 131568), (186, 109640), (240, 84971), (248, 82230), (310, 65784), (372, 54820), (465, 43856), (496, 41115), (620, 32892), (744, 27410), (930, 21928), (1240, 16446), (1488, 13705), (1860, 10964), (2480, 8223), (2741, 7440), (3720, 5482)]