7128889720

素因数分解:

$2^3\times 5^1\times {\mathrm{7681}}^1\times {\mathrm{23203}}^1$

素因数の和:30895

約数の個数: 32

約数和(自身を含む): 16042781520

約数和(自身を除く): 8913891800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7681, 15362, 23203, 30724, 38405, 46406, 61448, 76810, 92812, 116015, 153620, 185624, 232030, 307240, 464060, 928120, 178222243, 356444486, 712888972, 891111215, 1425777944, 1782222430, 3564444860, 7128889720]

約数ペア:

[(1, 7128889720), (2, 3564444860), (4, 1782222430), (5, 1425777944), (8, 891111215), (10, 712888972), (20, 356444486), (40, 178222243), (7681, 928120), (15362, 464060), (23203, 307240), (30724, 232030), (38405, 185624), (46406, 153620), (61448, 116015), (76810, 92812)]