4257040

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 9999360

約数和(自身を除く): 5742320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 419, 508, 635, 838, 1016, 1270, 1676, 2032, 2095, 2540, 3352, 4190, 5080, 6704, 8380, 10160, 16760, 33520, 53213, 106426, 212852, 266065, 425704, 532130, 851408, 1064260, 2128520, 4257040]

約数ペア:

[(1, 4257040), (2, 2128520), (4, 1064260), (5, 851408), (8, 532130), (10, 425704), (16, 266065), (20, 212852), (40, 106426), (80, 53213), (127, 33520), (254, 16760), (419, 10160), (508, 8380), (635, 6704), (838, 5080), (1016, 4190), (1270, 3352), (1676, 2540), (2032, 2095)]