208078580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1\times {\mathrm{379}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 444198720

約数和(自身を除く): 236120140

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 283, 379, 388, 485, 566, 758, 970, 1132, 1415, 1516, 1895, 1940, 2830, 3790, 5660, 7580, 27451, 36763, 54902, 73526, 107257, 109804, 137255, 147052, 183815, 214514, 274510, 367630, 429028, 536285, 549020, 735260, 1072570, 2145140, 10403929, 20807858, 41615716, 52019645, 104039290, 208078580]

約数ペア:

[(1, 208078580), (2, 104039290), (4, 52019645), (5, 41615716), (10, 20807858), (20, 10403929), (97, 2145140), (194, 1072570), (283, 735260), (379, 549020), (388, 536285), (485, 429028), (566, 367630), (758, 274510), (970, 214514), (1132, 183815), (1415, 147052), (1516, 137255), (1895, 109804), (1940, 107257), (2830, 73526), (3790, 54902), (5660, 36763), (7580, 27451)]