20049370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 22407590

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 53, 55, 95, 106, 110, 181, 190, 209, 265, 362, 418, 530, 583, 905, 1007, 1045, 1166, 1810, 1991, 2014, 2090, 2915, 3439, 3982, 5035, 5830, 6878, 9593, 9955, 10070, 11077, 17195, 19186, 19910, 22154, 34390, 37829, 47965, 55385, 75658, 95930, 105523, 110770, 182267, 189145, 211046, 364534, 378290, 527615, 911335, 1055230, 1822670, 2004937, 4009874, 10024685, 20049370]

約数ペア:

[(1, 20049370), (2, 10024685), (5, 4009874), (10, 2004937), (11, 1822670), (19, 1055230), (22, 911335), (38, 527615), (53, 378290), (55, 364534), (95, 211046), (106, 189145), (110, 182267), (181, 110770), (190, 105523), (209, 95930), (265, 75658), (362, 55385), (418, 47965), (530, 37829), (583, 34390), (905, 22154), (1007, 19910), (1045, 19186), (1166, 17195), (1810, 11077), (1991, 10070), (2014, 9955), (2090, 9593), (2915, 6878), (3439, 5830), (3982, 5035)]