639187520

素因数分解:

$2^6\times 5^1\times {\mathrm{179}}^1\times {\mathrm{11159}}^1$

素因数の和:11355

約数の個数: 56

約数和(自身を含む): 1530705600

約数和(自身を除く): 891518080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 179, 320, 358, 716, 895, 1432, 1790, 2864, 3580, 5728, 7160, 11159, 11456, 14320, 22318, 28640, 44636, 55795, 57280, 89272, 111590, 178544, 223180, 357088, 446360, 714176, 892720, 1785440, 1997461, 3570880, 3994922, 7989844, 9987305, 15979688, 19974610, 31959376, 39949220, 63918752, 79898440, 127837504, 159796880, 319593760, 639187520]

約数ペア:

[(1, 639187520), (2, 319593760), (4, 159796880), (5, 127837504), (8, 79898440), (10, 63918752), (16, 39949220), (20, 31959376), (32, 19974610), (40, 15979688), (64, 9987305), (80, 7989844), (160, 3994922), (179, 3570880), (320, 1997461), (358, 1785440), (716, 892720), (895, 714176), (1432, 446360), (1790, 357088), (2864, 223180), (3580, 178544), (5728, 111590), (7160, 89272), (11159, 57280), (11456, 55795), (14320, 44636), (22318, 28640)]