2490034640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{510253}}^1$

素因数の和:510327

約数の個数: 40

約数和(自身を含む): 5884249128

約数和(自身を除く): 3394214488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 510253, 1020506, 2041012, 2551265, 4082024, 5102530, 8164048, 10205060, 20410120, 31125433, 40820240, 62250866, 124501732, 155627165, 249003464, 311254330, 498006928, 622508660, 1245017320, 2490034640]

約数ペア:

[(1, 2490034640), (2, 1245017320), (4, 622508660), (5, 498006928), (8, 311254330), (10, 249003464), (16, 155627165), (20, 124501732), (40, 62250866), (61, 40820240), (80, 31125433), (122, 20410120), (244, 10205060), (305, 8164048), (488, 5102530), (610, 4082024), (976, 2551265), (1220, 2041012), (2440, 1020506), (4880, 510253)]