280291760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71503}}^1$

素因数の和:71530

約数の個数: 60

約数和(自身を含む): 758085408

約数和(自身を除く): 477793648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 71503, 143006, 286012, 357515, 500521, 572024, 715030, 1001042, 1144048, 1430060, 2002084, 2502605, 2860120, 3503647, 4004168, 5005210, 5720240, 7007294, 8008336, 10010420, 14014588, 17518235, 20020840, 28029176, 35036470, 40041680, 56058352, 70072940, 140145880, 280291760]

約数ペア:

[(1, 280291760), (2, 140145880), (4, 70072940), (5, 56058352), (7, 40041680), (8, 35036470), (10, 28029176), (14, 20020840), (16, 17518235), (20, 14014588), (28, 10010420), (35, 8008336), (40, 7007294), (49, 5720240), (56, 5005210), (70, 4004168), (80, 3503647), (98, 2860120), (112, 2502605), (140, 2002084), (196, 1430060), (245, 1144048), (280, 1001042), (392, 715030), (490, 572024), (560, 500521), (784, 357515), (980, 286012), (1960, 143006), (3920, 71503)]