28901992

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 64512000

約数和(自身を除く): 35610008

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 79, 94, 139, 158, 188, 278, 316, 329, 376, 553, 556, 632, 658, 973, 1106, 1112, 1316, 1946, 2212, 2632, 3713, 3892, 4424, 6533, 7426, 7784, 10981, 13066, 14852, 21962, 25991, 26132, 29704, 43924, 45731, 51982, 52264, 76867, 87848, 91462, 103964, 153734, 182924, 207928, 307468, 365848, 516107, 614936, 1032214, 2064428, 3612749, 4128856, 7225498, 14450996, 28901992]

約数ペア:

[(1, 28901992), (2, 14450996), (4, 7225498), (7, 4128856), (8, 3612749), (14, 2064428), (28, 1032214), (47, 614936), (56, 516107), (79, 365848), (94, 307468), (139, 207928), (158, 182924), (188, 153734), (278, 103964), (316, 91462), (329, 87848), (376, 76867), (553, 52264), (556, 51982), (632, 45731), (658, 43924), (973, 29704), (1106, 26132), (1112, 25991), (1316, 21962), (1946, 14852), (2212, 13066), (2632, 10981), (3713, 7784), (3892, 7426), (4424, 6533)]