1781440

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:329

約数の個数: 56

約数和(自身を含む): 4480560

約数和(自身を除く): 2699120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 293, 304, 320, 380, 586, 608, 760, 1172, 1216, 1465, 1520, 2344, 2930, 3040, 4688, 5567, 5860, 6080, 9376, 11134, 11720, 18752, 22268, 23440, 27835, 44536, 46880, 55670, 89072, 93760, 111340, 178144, 222680, 356288, 445360, 890720, 1781440]

約数ペア:

[(1, 1781440), (2, 890720), (4, 445360), (5, 356288), (8, 222680), (10, 178144), (16, 111340), (19, 93760), (20, 89072), (32, 55670), (38, 46880), (40, 44536), (64, 27835), (76, 23440), (80, 22268), (95, 18752), (152, 11720), (160, 11134), (190, 9376), (293, 6080), (304, 5860), (320, 5567), (380, 4688), (586, 3040), (608, 2930), (760, 2344), (1172, 1520), (1216, 1465)]