79940560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{20393}}^1$

素因数の和:20420

約数の個数: 60

約数和(自身を含む): 216217188

約数和(自身を除く): 136276628

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, 20393, 40786, 81572, 101965, 142751, 163144, 203930, 285502, 326288, 407860, 571004, 713755, 815720, 999257, 1142008, 1427510, 1631440, 1998514, 2284016, 2855020, 3997028, 4996285, 5710040, 7994056, 9992570, 11420080, 15988112, 19985140, 39970280, 79940560]

約数ペア:

[(1, 79940560), (2, 39970280), (4, 19985140), (5, 15988112), (7, 11420080), (8, 9992570), (10, 7994056), (14, 5710040), (16, 4996285), (20, 3997028), (28, 2855020), (35, 2284016), (40, 1998514), (49, 1631440), (56, 1427510), (70, 1142008), (80, 999257), (98, 815720), (112, 713755), (140, 571004), (196, 407860), (245, 326288), (280, 285502), (392, 203930), (490, 163144), (560, 142751), (784, 101965), (980, 81572), (1960, 40786), (3920, 20393)]