28209610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19727}}^1$

素因数の和:19758

約数の個数: 32

約数和(自身を含む): 59657472

約数和(自身を除く): 31447862

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 19727, 39454, 98635, 197270, 216997, 256451, 433994, 512902, 1084985, 1282255, 2169970, 2564510, 2820961, 5641922, 14104805, 28209610]

約数ペア:

[(1, 28209610), (2, 14104805), (5, 5641922), (10, 2820961), (11, 2564510), (13, 2169970), (22, 1282255), (26, 1084985), (55, 512902), (65, 433994), (110, 256451), (130, 216997), (143, 197270), (286, 98635), (715, 39454), (1430, 19727)]