128796556

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 286820352

約数和(自身を除く): 158023796

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 71, 74, 103, 119, 142, 148, 206, 238, 259, 284, 412, 476, 497, 518, 629, 721, 994, 1036, 1207, 1258, 1442, 1751, 1988, 2414, 2516, 2627, 2884, 3502, 3811, 4403, 4828, 5254, 7004, 7313, 7622, 8449, 8806, 10508, 12257, 14626, 15244, 16898, 17612, 18389, 24514, 26677, 29252, 33796, 36778, 44659, 49028, 51191, 53354, 64787, 73556, 89318, 102382, 106708, 124321, 129574, 178636, 204764, 248642, 259148, 270581, 312613, 453509, 497284, 541162, 625226, 870247, 907018, 1082324, 1250452, 1740494, 1814036, 1894067, 3480988, 3788134, 4599877, 7576268, 9199754, 18399508, 32199139, 64398278, 128796556]

約数ペア:

[(1, 128796556), (2, 64398278), (4, 32199139), (7, 18399508), (14, 9199754), (17, 7576268), (28, 4599877), (34, 3788134), (37, 3480988), (68, 1894067), (71, 1814036), (74, 1740494), (103, 1250452), (119, 1082324), (142, 907018), (148, 870247), (206, 625226), (238, 541162), (259, 497284), (284, 453509), (412, 312613), (476, 270581), (497, 259148), (518, 248642), (629, 204764), (721, 178636), (994, 129574), (1036, 124321), (1207, 106708), (1258, 102382), (1442, 89318), (1751, 73556), (1988, 64787), (2414, 53354), (2516, 51191), (2627, 49028), (2884, 44659), (3502, 36778), (3811, 33796), (4403, 29252), (4828, 26677), (5254, 24514), (7004, 18389), (7313, 17612), (7622, 16898), (8449, 15244), (8806, 14626), (10508, 12257)]