19138900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 45997056

約数和(自身を除く): 26858156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 127, 137, 220, 254, 274, 275, 508, 548, 550, 635, 685, 1100, 1270, 1370, 1397, 1507, 2540, 2740, 2794, 3014, 3175, 3425, 5588, 6028, 6350, 6850, 6985, 7535, 12700, 13700, 13970, 15070, 17399, 27940, 30140, 34798, 34925, 37675, 69596, 69850, 75350, 86995, 139700, 150700, 173990, 191389, 347980, 382778, 434975, 765556, 869950, 956945, 1739900, 1913890, 3827780, 4784725, 9569450, 19138900]

約数ペア:

[(1, 19138900), (2, 9569450), (4, 4784725), (5, 3827780), (10, 1913890), (11, 1739900), (20, 956945), (22, 869950), (25, 765556), (44, 434975), (50, 382778), (55, 347980), (100, 191389), (110, 173990), (127, 150700), (137, 139700), (220, 86995), (254, 75350), (274, 69850), (275, 69596), (508, 37675), (548, 34925), (550, 34798), (635, 30140), (685, 27940), (1100, 17399), (1270, 15070), (1370, 13970), (1397, 13700), (1507, 12700), (2540, 7535), (2740, 6985), (2794, 6850), (3014, 6350), (3175, 6028), (3425, 5588)]