251028736

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1973}}^1$

素因数の和:2067

約数の個数: 72

約数和(自身を含む): 581019264

約数和(自身を除く): 329990528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 256, 284, 448, 497, 568, 896, 994, 1136, 1792, 1973, 1988, 2272, 3946, 3976, 4544, 7892, 7952, 9088, 13811, 15784, 15904, 18176, 27622, 31568, 31808, 55244, 63136, 63616, 110488, 126272, 127232, 140083, 220976, 252544, 280166, 441952, 505088, 560332, 883904, 980581, 1120664, 1767808, 1961162, 2241328, 3535616, 3922324, 4482656, 7844648, 8965312, 15689296, 17930624, 31378592, 35861248, 62757184, 125514368, 251028736]

約数ペア:

[(1, 251028736), (2, 125514368), (4, 62757184), (7, 35861248), (8, 31378592), (14, 17930624), (16, 15689296), (28, 8965312), (32, 7844648), (56, 4482656), (64, 3922324), (71, 3535616), (112, 2241328), (128, 1961162), (142, 1767808), (224, 1120664), (256, 980581), (284, 883904), (448, 560332), (497, 505088), (568, 441952), (896, 280166), (994, 252544), (1136, 220976), (1792, 140083), (1973, 127232), (1988, 126272), (2272, 110488), (3946, 63616), (3976, 63136), (4544, 55244), (7892, 31808), (7952, 31568), (9088, 27622), (13811, 18176), (15784, 15904)]