988842780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{8311}}^1$

素因数の和:8987

約数の個数: 72

約数和(自身を含む): 3004389024

約数和(自身を除く): 2015546244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 661, 1322, 1983, 2644, 3305, 3966, 5949, 6610, 7932, 8311, 9915, 11898, 13220, 16622, 19830, 23796, 24933, 29745, 33244, 39660, 41555, 49866, 59490, 74799, 83110, 99732, 118980, 124665, 149598, 166220, 249330, 299196, 373995, 498660, 747990, 1495980, 5493571, 10987142, 16480713, 21974284, 27467855, 32961426, 49442139, 54935710, 65922852, 82403565, 98884278, 109871420, 164807130, 197768556, 247210695, 329614260, 494421390, 988842780]

約数ペア:

[(1, 988842780), (2, 494421390), (3, 329614260), (4, 247210695), (5, 197768556), (6, 164807130), (9, 109871420), (10, 98884278), (12, 82403565), (15, 65922852), (18, 54935710), (20, 49442139), (30, 32961426), (36, 27467855), (45, 21974284), (60, 16480713), (90, 10987142), (180, 5493571), (661, 1495980), (1322, 747990), (1983, 498660), (2644, 373995), (3305, 299196), (3966, 249330), (5949, 166220), (6610, 149598), (7932, 124665), (8311, 118980), (9915, 99732), (11898, 83110), (13220, 74799), (16622, 59490), (19830, 49866), (23796, 41555), (24933, 39660), (29745, 33244)]