20439210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 53944704

約数和(自身を除く): 33505494

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 241, 257, 330, 482, 514, 723, 771, 1205, 1285, 1446, 1542, 2410, 2570, 2651, 2827, 3615, 3855, 5302, 5654, 7230, 7710, 7953, 8481, 13255, 14135, 15906, 16962, 26510, 28270, 39765, 42405, 61937, 79530, 84810, 123874, 185811, 309685, 371622, 619370, 681307, 929055, 1362614, 1858110, 2043921, 3406535, 4087842, 6813070, 10219605, 20439210]

約数ペア:

[(1, 20439210), (2, 10219605), (3, 6813070), (5, 4087842), (6, 3406535), (10, 2043921), (11, 1858110), (15, 1362614), (22, 929055), (30, 681307), (33, 619370), (55, 371622), (66, 309685), (110, 185811), (165, 123874), (241, 84810), (257, 79530), (330, 61937), (482, 42405), (514, 39765), (723, 28270), (771, 26510), (1205, 16962), (1285, 15906), (1446, 14135), (1542, 13255), (2410, 8481), (2570, 7953), (2651, 7710), (2827, 7230), (3615, 5654), (3855, 5302)]