28629940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 63423360

約数和(自身を除く): 34793420

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 571, 1090, 1142, 2180, 2284, 2507, 2855, 5014, 5710, 10028, 11420, 12535, 13133, 25070, 26266, 50140, 52532, 62239, 65665, 124478, 131330, 248956, 262660, 311195, 622390, 1244780, 1431497, 2862994, 5725988, 7157485, 14314970, 28629940]

約数ペア:

[(1, 28629940), (2, 14314970), (4, 7157485), (5, 5725988), (10, 2862994), (20, 1431497), (23, 1244780), (46, 622390), (92, 311195), (109, 262660), (115, 248956), (218, 131330), (230, 124478), (436, 65665), (460, 62239), (545, 52532), (571, 50140), (1090, 26266), (1142, 25070), (2180, 13133), (2284, 12535), (2507, 11420), (2855, 10028), (5014, 5710)]