19841800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 52228800

約数和(自身を除く): 32387000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 29, 40, 44, 50, 55, 58, 88, 100, 110, 116, 145, 200, 220, 232, 275, 290, 311, 319, 440, 550, 580, 622, 638, 725, 1100, 1160, 1244, 1276, 1450, 1555, 1595, 2200, 2488, 2552, 2900, 3110, 3190, 3421, 5800, 6220, 6380, 6842, 7775, 7975, 9019, 12440, 12760, 13684, 15550, 15950, 17105, 18038, 27368, 31100, 31900, 34210, 36076, 45095, 62200, 63800, 68420, 72152, 85525, 90190, 99209, 136840, 171050, 180380, 198418, 225475, 342100, 360760, 396836, 450950, 496045, 684200, 793672, 901900, 992090, 1803800, 1984180, 2480225, 3968360, 4960450, 9920900, 19841800]

約数ペア:

[(1, 19841800), (2, 9920900), (4, 4960450), (5, 3968360), (8, 2480225), (10, 1984180), (11, 1803800), (20, 992090), (22, 901900), (25, 793672), (29, 684200), (40, 496045), (44, 450950), (50, 396836), (55, 360760), (58, 342100), (88, 225475), (100, 198418), (110, 180380), (116, 171050), (145, 136840), (200, 99209), (220, 90190), (232, 85525), (275, 72152), (290, 68420), (311, 63800), (319, 62200), (440, 45095), (550, 36076), (580, 34210), (622, 31900), (638, 31100), (725, 27368), (1100, 18038), (1160, 17105), (1244, 15950), (1276, 15550), (1450, 13684), (1555, 12760), (1595, 12440), (2200, 9019), (2488, 7975), (2552, 7775), (2900, 6842), (3110, 6380), (3190, 6220), (3421, 5800)]