18995050

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 36961920

約数和(自身を除く): 17966870

約数列:

[1, 2, 5, 10, 25, 47, 50, 59, 94, 118, 137, 235, 274, 295, 470, 590, 685, 1175, 1370, 1475, 2350, 2773, 2950, 3425, 5546, 6439, 6850, 8083, 12878, 13865, 16166, 27730, 32195, 40415, 64390, 69325, 80830, 138650, 160975, 202075, 321950, 379901, 404150, 759802, 1899505, 3799010, 9497525, 18995050]

約数ペア:

[(1, 18995050), (2, 9497525), (5, 3799010), (10, 1899505), (25, 759802), (47, 404150), (50, 379901), (59, 321950), (94, 202075), (118, 160975), (137, 138650), (235, 80830), (274, 69325), (295, 64390), (470, 40415), (590, 32195), (685, 27730), (1175, 16166), (1370, 13865), (1475, 12878), (2350, 8083), (2773, 6850), (2950, 6439), (3425, 5546)]