8778380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1777}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 20909280

約数和(自身を除く): 12130900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 1777, 2470, 3554, 4940, 7108, 8885, 17770, 23101, 33763, 35540, 46202, 67526, 92404, 115505, 135052, 168815, 231010, 337630, 438919, 462020, 675260, 877838, 1755676, 2194595, 4389190, 8778380]

約数ペア:

[(1, 8778380), (2, 4389190), (4, 2194595), (5, 1755676), (10, 877838), (13, 675260), (19, 462020), (20, 438919), (26, 337630), (38, 231010), (52, 168815), (65, 135052), (76, 115505), (95, 92404), (130, 67526), (190, 46202), (247, 35540), (260, 33763), (380, 23101), (494, 17770), (988, 8885), (1235, 7108), (1777, 4940), (2470, 3554)]