127687520

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4051}}^1$

素因数の和:4263

約数の個数: 48

約数和(自身を含む): 303267888

約数和(自身を除く): 175580368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 4051, 6304, 7880, 8102, 15760, 16204, 20255, 31520, 32408, 40510, 64816, 81020, 129632, 162040, 324080, 648160, 798047, 1596094, 3192188, 3990235, 6384376, 7980470, 12768752, 15960940, 25537504, 31921880, 63843760, 127687520]

約数ペア:

[(1, 127687520), (2, 63843760), (4, 31921880), (5, 25537504), (8, 15960940), (10, 12768752), (16, 7980470), (20, 6384376), (32, 3990235), (40, 3192188), (80, 1596094), (160, 798047), (197, 648160), (394, 324080), (788, 162040), (985, 129632), (1576, 81020), (1970, 64816), (3152, 40510), (3940, 32408), (4051, 31520), (6304, 20255), (7880, 16204), (8102, 15760)]