28186900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 71064896

約数和(自身を除く): 42877996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 469, 601, 670, 700, 938, 1202, 1340, 1675, 1876, 2345, 2404, 3005, 3350, 4207, 4690, 6010, 6700, 8414, 9380, 11725, 12020, 15025, 16828, 21035, 23450, 30050, 40267, 42070, 46900, 60100, 80534, 84140, 105175, 161068, 201335, 210350, 281869, 402670, 420700, 563738, 805340, 1006675, 1127476, 1409345, 2013350, 2818690, 4026700, 5637380, 7046725, 14093450, 28186900]

約数ペア:

[(1, 28186900), (2, 14093450), (4, 7046725), (5, 5637380), (7, 4026700), (10, 2818690), (14, 2013350), (20, 1409345), (25, 1127476), (28, 1006675), (35, 805340), (50, 563738), (67, 420700), (70, 402670), (100, 281869), (134, 210350), (140, 201335), (175, 161068), (268, 105175), (335, 84140), (350, 80534), (469, 60100), (601, 46900), (670, 42070), (700, 40267), (938, 30050), (1202, 23450), (1340, 21035), (1675, 16828), (1876, 15025), (2345, 12020), (2404, 11725), (3005, 9380), (3350, 8414), (4207, 6700), (4690, 6010)]