123478620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{55621}}^1$

素因数の和:55670

約数の個数: 48

約数和(自身を含む): 355090848

約数和(自身を除く): 231612228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 55621, 111242, 166863, 222484, 278105, 333726, 556210, 667452, 834315, 1112420, 1668630, 2057977, 3337260, 4115954, 6173931, 8231908, 10289885, 12347862, 20579770, 24695724, 30869655, 41159540, 61739310, 123478620]

約数ペア:

[(1, 123478620), (2, 61739310), (3, 41159540), (4, 30869655), (5, 24695724), (6, 20579770), (10, 12347862), (12, 10289885), (15, 8231908), (20, 6173931), (30, 4115954), (37, 3337260), (60, 2057977), (74, 1668630), (111, 1112420), (148, 834315), (185, 667452), (222, 556210), (370, 333726), (444, 278105), (555, 222484), (740, 166863), (1110, 111242), (2220, 55621)]