19823840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6521}}^1$

素因数の和:6555

約数の個数: 48

約数和(自身を含む): 49306320

約数和(自身を除く): 29482480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6521, 13042, 26084, 32605, 52168, 65210, 104336, 123899, 130420, 208672, 247798, 260840, 495596, 521680, 619495, 991192, 1043360, 1238990, 1982384, 2477980, 3964768, 4955960, 9911920, 19823840]

約数ペア:

[(1, 19823840), (2, 9911920), (4, 4955960), (5, 3964768), (8, 2477980), (10, 1982384), (16, 1238990), (19, 1043360), (20, 991192), (32, 619495), (38, 521680), (40, 495596), (76, 260840), (80, 247798), (95, 208672), (152, 130420), (160, 123899), (190, 104336), (304, 65210), (380, 52168), (608, 32605), (760, 26084), (1520, 13042), (3040, 6521)]