628347940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{26203}}^1$

素因数の和:26332

約数の個数: 48

約数和(自身を含む): 1452749760

約数和(自身を除く): 824401820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 26203, 52406, 104812, 131015, 262030, 288233, 524060, 576466, 1152932, 1441165, 2856127, 2882330, 5712254, 5764660, 11424508, 14280635, 28561270, 31417397, 57122540, 62834794, 125669588, 157086985, 314173970, 628347940]

約数ペア:

[(1, 628347940), (2, 314173970), (4, 157086985), (5, 125669588), (10, 62834794), (11, 57122540), (20, 31417397), (22, 28561270), (44, 14280635), (55, 11424508), (109, 5764660), (110, 5712254), (218, 2882330), (220, 2856127), (436, 1441165), (545, 1152932), (1090, 576466), (1199, 524060), (2180, 288233), (2398, 262030), (4796, 131015), (5995, 104812), (11990, 52406), (23980, 26203)]