19377920

素因数分解:

$2^8\times 5^1\times {\mathrm{15139}}^1$

素因数の和:15160

約数の個数: 36

約数和(自身を含む): 46419240

約数和(自身を除く): 27041320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15139, 30278, 60556, 75695, 121112, 151390, 242224, 302780, 484448, 605560, 968896, 1211120, 1937792, 2422240, 3875584, 4844480, 9688960, 19377920]

約数ペア:

[(1, 19377920), (2, 9688960), (4, 4844480), (5, 3875584), (8, 2422240), (10, 1937792), (16, 1211120), (20, 968896), (32, 605560), (40, 484448), (64, 302780), (80, 242224), (128, 151390), (160, 121112), (256, 75695), (320, 60556), (640, 30278), (1280, 15139)]