1285757860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{8677}}^1$

素因数の和:8956

約数の個数: 48

約数和(自身を含む): 2799175680

約数和(自身を除く): 1513417820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 239, 310, 478, 620, 956, 1195, 2390, 4780, 7409, 8677, 14818, 17354, 29636, 34708, 37045, 43385, 74090, 86770, 148180, 173540, 268987, 537974, 1075948, 1344935, 2073803, 2689870, 4147606, 5379740, 8295212, 10369015, 20738030, 41476060, 64287893, 128575786, 257151572, 321439465, 642878930, 1285757860]

約数ペア:

[(1, 1285757860), (2, 642878930), (4, 321439465), (5, 257151572), (10, 128575786), (20, 64287893), (31, 41476060), (62, 20738030), (124, 10369015), (155, 8295212), (239, 5379740), (310, 4147606), (478, 2689870), (620, 2073803), (956, 1344935), (1195, 1075948), (2390, 537974), (4780, 268987), (7409, 173540), (8677, 148180), (14818, 86770), (17354, 74090), (29636, 43385), (34708, 37045)]