163945220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1\times {\mathrm{293}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 350139888

約数和(自身を除く): 186194668

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 277, 293, 404, 505, 554, 586, 1010, 1108, 1172, 1385, 1465, 2020, 2770, 2930, 5540, 5860, 27977, 29593, 55954, 59186, 81161, 111908, 118372, 139885, 147965, 162322, 279770, 295930, 324644, 405805, 559540, 591860, 811610, 1623220, 8197261, 16394522, 32789044, 40986305, 81972610, 163945220]

約数ペア:

[(1, 163945220), (2, 81972610), (4, 40986305), (5, 32789044), (10, 16394522), (20, 8197261), (101, 1623220), (202, 811610), (277, 591860), (293, 559540), (404, 405805), (505, 324644), (554, 295930), (586, 279770), (1010, 162322), (1108, 147965), (1172, 139885), (1385, 118372), (1465, 111908), (2020, 81161), (2770, 59186), (2930, 55954), (5540, 29593), (5860, 27977)]