161921656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 344332800

約数和(自身を除く): 182411144

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 139, 184, 278, 299, 487, 556, 598, 974, 1112, 1196, 1807, 1948, 2392, 3197, 3614, 3896, 6331, 6394, 7228, 11201, 12662, 12788, 14456, 22402, 25324, 25576, 41561, 44804, 50648, 67693, 83122, 89608, 135386, 145613, 166244, 270772, 291226, 332488, 541544, 582452, 880009, 1164904, 1556939, 1760018, 3113878, 3520036, 6227756, 7040072, 12455512, 20240207, 40480414, 80960828, 161921656]

約数ペア:

[(1, 161921656), (2, 80960828), (4, 40480414), (8, 20240207), (13, 12455512), (23, 7040072), (26, 6227756), (46, 3520036), (52, 3113878), (92, 1760018), (104, 1556939), (139, 1164904), (184, 880009), (278, 582452), (299, 541544), (487, 332488), (556, 291226), (598, 270772), (974, 166244), (1112, 145613), (1196, 135386), (1807, 89608), (1948, 83122), (2392, 67693), (3197, 50648), (3614, 44804), (3896, 41561), (6331, 25576), (6394, 25324), (7228, 22402), (11201, 14456), (12662, 12788)]