257859860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{8849}}^1$

素因数の和:8936

約数の個数: 48

約数和(自身を含む): 570931200

約数和(自身を除く): 313071340

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 940, 1457, 2914, 5828, 7285, 8849, 14570, 17698, 29140, 35396, 44245, 88490, 176980, 274319, 415903, 548638, 831806, 1097276, 1371595, 1663612, 2079515, 2743190, 4159030, 5486380, 8318060, 12892993, 25785986, 51571972, 64464965, 128929930, 257859860]

約数ペア:

[(1, 257859860), (2, 128929930), (4, 64464965), (5, 51571972), (10, 25785986), (20, 12892993), (31, 8318060), (47, 5486380), (62, 4159030), (94, 2743190), (124, 2079515), (155, 1663612), (188, 1371595), (235, 1097276), (310, 831806), (470, 548638), (620, 415903), (940, 274319), (1457, 176980), (2914, 88490), (5828, 44245), (7285, 35396), (8849, 29140), (14570, 17698)]