20672520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15661}}^1$

素因数の和:15686

約数の個数: 64

約数和(自身を含む): 67659840

約数和(自身を除く): 46987320

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, 15661, 31322, 46983, 62644, 78305, 93966, 125288, 156610, 172271, 187932, 234915, 313220, 344542, 375864, 469830, 516813, 626440, 689084, 861355, 939660, 1033626, 1378168, 1722710, 1879320, 2067252, 2584065, 3445420, 4134504, 5168130, 6890840, 10336260, 20672520]

約数ペア:

[(1, 20672520), (2, 10336260), (3, 6890840), (4, 5168130), (5, 4134504), (6, 3445420), (8, 2584065), (10, 2067252), (11, 1879320), (12, 1722710), (15, 1378168), (20, 1033626), (22, 939660), (24, 861355), (30, 689084), (33, 626440), (40, 516813), (44, 469830), (55, 375864), (60, 344542), (66, 313220), (88, 234915), (110, 187932), (120, 172271), (132, 156610), (165, 125288), (220, 93966), (264, 78305), (330, 62644), (440, 46983), (660, 31322), (1320, 15661)]