20189917240

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1204649}}^1$

素因数の和:1205079

約数の個数: 32

約数和(自身を含む): 45535770000

約数和(自身を除く): 25345852760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 8380, 16760, 1204649, 2409298, 4818596, 6023245, 9637192, 12046490, 24092980, 48185960, 504747931, 1009495862, 2018991724, 2523739655, 4037983448, 5047479310, 10094958620, 20189917240]

約数ペア:

[(1, 20189917240), (2, 10094958620), (4, 5047479310), (5, 4037983448), (8, 2523739655), (10, 2018991724), (20, 1009495862), (40, 504747931), (419, 48185960), (838, 24092980), (1676, 12046490), (2095, 9637192), (3352, 6023245), (4190, 4818596), (8380, 2409298), (16760, 1204649)]