20962920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15881}}^1$

素因数の和:15906

約数の個数: 64

約数和(自身を含む): 68610240

約数和(自身を除く): 47647320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15881, 31762, 47643, 63524, 79405, 95286, 127048, 158810, 174691, 190572, 238215, 317620, 349382, 381144, 476430, 524073, 635240, 698764, 873455, 952860, 1048146, 1397528, 1746910, 1905720, 2096292, 2620365, 3493820, 4192584, 5240730, 6987640, 10481460, 20962920]

約数ペア:

[(1, 20962920), (2, 10481460), (3, 6987640), (4, 5240730), (5, 4192584), (6, 3493820), (8, 2620365), (10, 2096292), (11, 1905720), (12, 1746910), (15, 1397528), (20, 1048146), (22, 952860), (24, 873455), (30, 698764), (33, 635240), (40, 524073), (44, 476430), (55, 381144), (60, 349382), (66, 317620), (88, 238215), (110, 190572), (120, 174691), (132, 158810), (165, 127048), (220, 95286), (264, 79405), (330, 63524), (440, 47643), (660, 31762), (1320, 15881)]