20605514

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 12848566

約数列:

[1, 2, 31, 43, 59, 62, 86, 118, 131, 262, 1333, 1829, 2537, 2666, 3658, 4061, 5074, 5633, 7729, 8122, 11266, 15458, 78647, 157294, 174623, 239599, 332347, 349246, 479198, 664694, 10302757, 20605514]

約数ペア:

[(1, 20605514), (2, 10302757), (31, 664694), (43, 479198), (59, 349246), (62, 332347), (86, 239599), (118, 174623), (131, 157294), (262, 78647), (1333, 15458), (1829, 11266), (2537, 8122), (2666, 7729), (3658, 5633), (4061, 5074)]