9920900

素因数分解:

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

素因数の和:365

約数の個数: 72

約数和(自身を含む): 24373440

約数和(自身を除く): 14452540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 311, 319, 550, 580, 622, 638, 725, 1100, 1244, 1276, 1450, 1555, 1595, 2900, 3110, 3190, 3421, 6220, 6380, 6842, 7775, 7975, 9019, 13684, 15550, 15950, 17105, 18038, 31100, 31900, 34210, 36076, 45095, 68420, 85525, 90190, 99209, 171050, 180380, 198418, 225475, 342100, 396836, 450950, 496045, 901900, 992090, 1984180, 2480225, 4960450, 9920900]

約数ペア:

[(1, 9920900), (2, 4960450), (4, 2480225), (5, 1984180), (10, 992090), (11, 901900), (20, 496045), (22, 450950), (25, 396836), (29, 342100), (44, 225475), (50, 198418), (55, 180380), (58, 171050), (100, 99209), (110, 90190), (116, 85525), (145, 68420), (220, 45095), (275, 36076), (290, 34210), (311, 31900), (319, 31100), (550, 18038), (580, 17105), (622, 15950), (638, 15550), (725, 13684), (1100, 9019), (1244, 7975), (1276, 7775), (1450, 6842), (1555, 6380), (1595, 6220), (2900, 3421), (3110, 3190)]