2169860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1409}}^1$

素因数の和:1436

約数の個数: 48

約数和(自身を含む): 5685120

約数和(自身を除く): 3515260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1409, 1540, 2818, 5636, 7045, 9863, 14090, 15499, 19726, 28180, 30998, 39452, 49315, 61996, 77495, 98630, 108493, 154990, 197260, 216986, 309980, 433972, 542465, 1084930, 2169860]

約数ペア:

[(1, 2169860), (2, 1084930), (4, 542465), (5, 433972), (7, 309980), (10, 216986), (11, 197260), (14, 154990), (20, 108493), (22, 98630), (28, 77495), (35, 61996), (44, 49315), (55, 39452), (70, 30998), (77, 28180), (110, 19726), (140, 15499), (154, 14090), (220, 9863), (308, 7045), (385, 5636), (770, 2818), (1409, 1540)]