311360

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{139}}^1$

素因数の和:163

約数の個数: 56

約数和(自身を含む): 853440

約数和(自身を除く): 542080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 139, 140, 160, 224, 278, 280, 320, 448, 556, 560, 695, 973, 1112, 1120, 1390, 1946, 2224, 2240, 2780, 3892, 4448, 4865, 5560, 7784, 8896, 9730, 11120, 15568, 19460, 22240, 31136, 38920, 44480, 62272, 77840, 155680, 311360]

約数ペア:

[(1, 311360), (2, 155680), (4, 77840), (5, 62272), (7, 44480), (8, 38920), (10, 31136), (14, 22240), (16, 19460), (20, 15568), (28, 11120), (32, 9730), (35, 8896), (40, 7784), (56, 5560), (64, 4865), (70, 4448), (80, 3892), (112, 2780), (139, 2240), (140, 2224), (160, 1946), (224, 1390), (278, 1120), (280, 1112), (320, 973), (448, 695), (556, 560)]