648255680

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{106621}}^1$

素因数の和:106657

約数の個数: 56

約数和(自身を含む): 1624919280

約数和(自身を除く): 976663600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 106621, 213242, 426484, 533105, 852968, 1066210, 1705936, 2025799, 2132420, 3411872, 4051598, 4264840, 6823744, 8103196, 8529680, 10128995, 16206392, 17059360, 20257990, 32412784, 34118720, 40515980, 64825568, 81031960, 129651136, 162063920, 324127840, 648255680]

約数ペア:

[(1, 648255680), (2, 324127840), (4, 162063920), (5, 129651136), (8, 81031960), (10, 64825568), (16, 40515980), (19, 34118720), (20, 32412784), (32, 20257990), (38, 17059360), (40, 16206392), (64, 10128995), (76, 8529680), (80, 8103196), (95, 6823744), (152, 4264840), (160, 4051598), (190, 3411872), (304, 2132420), (320, 2025799), (380, 1705936), (608, 1066210), (760, 852968), (1216, 533105), (1520, 426484), (3040, 213242), (6080, 106621)]