219987460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20407}}^1$

素因数の和:20441

約数の個数: 72

約数和(自身を含む): 586281024

約数和(自身を除く): 366293564

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 20407, 40814, 81628, 102035, 142849, 204070, 224477, 285698, 408140, 448954, 571396, 714245, 897908, 999943, 1122385, 1428490, 1571339, 1999886, 2244770, 2856980, 3142678, 3999772, 4489540, 4999715, 6285356, 7856695, 9999430, 10999373, 15713390, 19998860, 21998746, 31426780, 43997492, 54996865, 109993730, 219987460]

約数ペア:

[(1, 219987460), (2, 109993730), (4, 54996865), (5, 43997492), (7, 31426780), (10, 21998746), (11, 19998860), (14, 15713390), (20, 10999373), (22, 9999430), (28, 7856695), (35, 6285356), (44, 4999715), (49, 4489540), (55, 3999772), (70, 3142678), (77, 2856980), (98, 2244770), (110, 1999886), (140, 1571339), (154, 1428490), (196, 1122385), (220, 999943), (245, 897908), (308, 714245), (385, 571396), (490, 448954), (539, 408140), (770, 285698), (980, 224477), (1078, 204070), (1540, 142849), (2156, 102035), (2695, 81628), (5390, 40814), (10780, 20407)]