28568820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 92123136

約数和(自身を除く): 63554316

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 251, 271, 420, 502, 542, 753, 813, 1004, 1084, 1255, 1355, 1506, 1626, 1757, 1897, 2510, 2710, 3012, 3252, 3514, 3765, 3794, 4065, 5020, 5271, 5420, 5691, 7028, 7530, 7588, 8130, 8785, 9485, 10542, 11382, 15060, 16260, 17570, 18970, 21084, 22764, 26355, 28455, 35140, 37940, 52710, 56910, 68021, 105420, 113820, 136042, 204063, 272084, 340105, 408126, 476147, 680210, 816252, 952294, 1020315, 1360420, 1428441, 1904588, 2040630, 2380735, 2856882, 4081260, 4761470, 5713764, 7142205, 9522940, 14284410, 28568820]

約数ペア:

[(1, 28568820), (2, 14284410), (3, 9522940), (4, 7142205), (5, 5713764), (6, 4761470), (7, 4081260), (10, 2856882), (12, 2380735), (14, 2040630), (15, 1904588), (20, 1428441), (21, 1360420), (28, 1020315), (30, 952294), (35, 816252), (42, 680210), (60, 476147), (70, 408126), (84, 340105), (105, 272084), (140, 204063), (210, 136042), (251, 113820), (271, 105420), (420, 68021), (502, 56910), (542, 52710), (753, 37940), (813, 35140), (1004, 28455), (1084, 26355), (1255, 22764), (1355, 21084), (1506, 18970), (1626, 17570), (1757, 16260), (1897, 15060), (2510, 11382), (2710, 10542), (3012, 9485), (3252, 8785), (3514, 8130), (3765, 7588), (3794, 7530), (4065, 7028), (5020, 5691), (5271, 5420)]