155680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{139}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 423360

約数和(自身を除く): 267680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 139, 140, 160, 224, 278, 280, 556, 560, 695, 973, 1112, 1120, 1390, 1946, 2224, 2780, 3892, 4448, 4865, 5560, 7784, 9730, 11120, 15568, 19460, 22240, 31136, 38920, 77840, 155680]

約数ペア:

[(1, 155680), (2, 77840), (4, 38920), (5, 31136), (7, 22240), (8, 19460), (10, 15568), (14, 11120), (16, 9730), (20, 7784), (28, 5560), (32, 4865), (35, 4448), (40, 3892), (56, 2780), (70, 2224), (80, 1946), (112, 1390), (139, 1120), (140, 1112), (160, 973), (224, 695), (278, 560), (280, 556)]