1267922720

素因数分解:

$2^5\times 5^1\times {\mathrm{397}}^1\times {\mathrm{19961}}^1$

素因数の和:20373

約数の個数: 48

約数和(自身を含む): 3003163128

約数和(自身を除く): 1735240408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 397, 794, 1588, 1985, 3176, 3970, 6352, 7940, 12704, 15880, 19961, 31760, 39922, 63520, 79844, 99805, 159688, 199610, 319376, 399220, 638752, 798440, 1596880, 3193760, 7924517, 15849034, 31698068, 39622585, 63396136, 79245170, 126792272, 158490340, 253584544, 316980680, 633961360, 1267922720]

約数ペア:

[(1, 1267922720), (2, 633961360), (4, 316980680), (5, 253584544), (8, 158490340), (10, 126792272), (16, 79245170), (20, 63396136), (32, 39622585), (40, 31698068), (80, 15849034), (160, 7924517), (397, 3193760), (794, 1596880), (1588, 798440), (1985, 638752), (3176, 399220), (3970, 319376), (6352, 199610), (7940, 159688), (12704, 99805), (15880, 79844), (19961, 63520), (31760, 39922)]