31008780

素因数分解:

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

素因数の和:15687

約数の個数: 72

約数和(自身を含む): 102617424

約数和(自身を除く): 71608644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 15661, 31322, 46983, 62644, 78305, 93966, 140949, 156610, 172271, 187932, 234915, 281898, 313220, 344542, 469830, 516813, 563796, 689084, 704745, 861355, 939660, 1033626, 1409490, 1550439, 1722710, 2067252, 2584065, 2818980, 3100878, 3445420, 5168130, 6201756, 7752195, 10336260, 15504390, 31008780]

約数ペア:

[(1, 31008780), (2, 15504390), (3, 10336260), (4, 7752195), (5, 6201756), (6, 5168130), (9, 3445420), (10, 3100878), (11, 2818980), (12, 2584065), (15, 2067252), (18, 1722710), (20, 1550439), (22, 1409490), (30, 1033626), (33, 939660), (36, 861355), (44, 704745), (45, 689084), (55, 563796), (60, 516813), (66, 469830), (90, 344542), (99, 313220), (110, 281898), (132, 234915), (165, 187932), (180, 172271), (198, 156610), (220, 140949), (330, 93966), (396, 78305), (495, 62644), (660, 46983), (990, 31322), (1980, 15661)]