421792700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1549}}^1$

素因数の和:1959

約数の個数: 72

約数和(自身を含む): 1049412000

約数和(自身を除く): 627619300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 389, 700, 778, 1549, 1556, 1945, 2723, 3098, 3890, 5446, 6196, 7745, 7780, 9725, 10843, 10892, 13615, 15490, 19450, 21686, 27230, 30980, 38725, 38900, 43372, 54215, 54460, 68075, 77450, 108430, 136150, 154900, 216860, 271075, 272300, 542150, 602561, 1084300, 1205122, 2410244, 3012805, 4217927, 6025610, 8435854, 12051220, 15064025, 16871708, 21089635, 30128050, 42179270, 60256100, 84358540, 105448175, 210896350, 421792700]

約数ペア:

[(1, 421792700), (2, 210896350), (4, 105448175), (5, 84358540), (7, 60256100), (10, 42179270), (14, 30128050), (20, 21089635), (25, 16871708), (28, 15064025), (35, 12051220), (50, 8435854), (70, 6025610), (100, 4217927), (140, 3012805), (175, 2410244), (350, 1205122), (389, 1084300), (700, 602561), (778, 542150), (1549, 272300), (1556, 271075), (1945, 216860), (2723, 154900), (3098, 136150), (3890, 108430), (5446, 77450), (6196, 68075), (7745, 54460), (7780, 54215), (9725, 43372), (10843, 38900), (10892, 38725), (13615, 30980), (15490, 27230), (19450, 21686)]