121591640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1320

約数の個数: 64

約数和(自身を含む): 290304000

約数和(自身を除く): 168712360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 278, 380, 556, 695, 760, 1112, 1151, 1390, 2302, 2641, 2780, 4604, 5282, 5560, 5755, 9208, 10564, 11510, 13205, 21128, 21869, 23020, 26410, 43738, 46040, 52820, 87476, 105640, 109345, 159989, 174952, 218690, 319978, 437380, 639956, 799945, 874760, 1279912, 1599890, 3039791, 3199780, 6079582, 6399560, 12159164, 15198955, 24318328, 30397910, 60795820, 121591640]

約数ペア:

[(1, 121591640), (2, 60795820), (4, 30397910), (5, 24318328), (8, 15198955), (10, 12159164), (19, 6399560), (20, 6079582), (38, 3199780), (40, 3039791), (76, 1599890), (95, 1279912), (139, 874760), (152, 799945), (190, 639956), (278, 437380), (380, 319978), (556, 218690), (695, 174952), (760, 159989), (1112, 109345), (1151, 105640), (1390, 87476), (2302, 52820), (2641, 46040), (2780, 43738), (4604, 26410), (5282, 23020), (5560, 21869), (5755, 21128), (9208, 13205), (10564, 11510)]