19261820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 23709220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 293, 346, 380, 586, 692, 865, 1172, 1465, 1730, 2930, 3287, 3460, 5567, 5860, 6574, 11134, 13148, 16435, 22268, 27835, 32870, 50689, 55670, 65740, 101378, 111340, 202756, 253445, 506890, 963091, 1013780, 1926182, 3852364, 4815455, 9630910, 19261820]

約数ペア:

[(1, 19261820), (2, 9630910), (4, 4815455), (5, 3852364), (10, 1926182), (19, 1013780), (20, 963091), (38, 506890), (76, 253445), (95, 202756), (173, 111340), (190, 101378), (293, 65740), (346, 55670), (380, 50689), (586, 32870), (692, 27835), (865, 22268), (1172, 16435), (1465, 13148), (1730, 11134), (2930, 6574), (3287, 5860), (3460, 5567)]