1948651720

素因数分解:

$2^3\times 5^1\times {\mathrm{12611}}^1\times {\mathrm{3863}}^1$

素因数の和:16485

約数の個数: 32

約数和(自身を含む): 4385949120

約数和(自身を除く): 2437297400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3863, 7726, 12611, 15452, 19315, 25222, 30904, 38630, 50444, 63055, 77260, 100888, 126110, 154520, 252220, 504440, 48716293, 97432586, 194865172, 243581465, 389730344, 487162930, 974325860, 1948651720]

約数ペア:

[(1, 1948651720), (2, 974325860), (4, 487162930), (5, 389730344), (8, 243581465), (10, 194865172), (20, 97432586), (40, 48716293), (3863, 504440), (7726, 252220), (12611, 154520), (15452, 126110), (19315, 100888), (25222, 77260), (30904, 63055), (38630, 50444)]