28202680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5827}}^1$

素因数の和:5860

約数の個数: 48

約数和(自身を含む): 69761160

約数和(自身を除く): 41558480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5827, 11654, 23308, 29135, 46616, 58270, 64097, 116540, 128194, 233080, 256388, 320485, 512776, 640970, 705067, 1281940, 1410134, 2563880, 2820268, 3525335, 5640536, 7050670, 14101340, 28202680]

約数ペア:

[(1, 28202680), (2, 14101340), (4, 7050670), (5, 5640536), (8, 3525335), (10, 2820268), (11, 2563880), (20, 1410134), (22, 1281940), (40, 705067), (44, 640970), (55, 512776), (88, 320485), (110, 256388), (121, 233080), (220, 128194), (242, 116540), (440, 64097), (484, 58270), (605, 46616), (968, 29135), (1210, 23308), (2420, 11654), (4840, 5827)]