20565840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85691}}^1$

素因数の和:85707

約数の個数: 40

約数和(自身を含む): 63754848

約数和(自身を除く): 43189008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85691, 171382, 257073, 342764, 428455, 514146, 685528, 856910, 1028292, 1285365, 1371056, 1713820, 2056584, 2570730, 3427640, 4113168, 5141460, 6855280, 10282920, 20565840]

約数ペア:

[(1, 20565840), (2, 10282920), (3, 6855280), (4, 5141460), (5, 4113168), (6, 3427640), (8, 2570730), (10, 2056584), (12, 1713820), (15, 1371056), (16, 1285365), (20, 1028292), (24, 856910), (30, 685528), (40, 514146), (48, 428455), (60, 342764), (80, 257073), (120, 171382), (240, 85691)]