208778766

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1457

約数の個数: 64

約数和(自身を含む): 493433856

約数和(自身を除く): 284655090

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 71, 106, 142, 159, 213, 318, 371, 426, 497, 742, 994, 1113, 1321, 1491, 2226, 2642, 2982, 3763, 3963, 7526, 7926, 9247, 11289, 18494, 22578, 26341, 27741, 52682, 55482, 70013, 79023, 93791, 140026, 158046, 187582, 210039, 281373, 420078, 490091, 562746, 656537, 980182, 1313074, 1470273, 1969611, 2940546, 3939222, 4970923, 9941846, 14912769, 29825538, 34796461, 69592922, 104389383, 208778766]

約数ペア:

[(1, 208778766), (2, 104389383), (3, 69592922), (6, 34796461), (7, 29825538), (14, 14912769), (21, 9941846), (42, 4970923), (53, 3939222), (71, 2940546), (106, 1969611), (142, 1470273), (159, 1313074), (213, 980182), (318, 656537), (371, 562746), (426, 490091), (497, 420078), (742, 281373), (994, 210039), (1113, 187582), (1321, 158046), (1491, 140026), (2226, 93791), (2642, 79023), (2982, 70013), (3763, 55482), (3963, 52682), (7526, 27741), (7926, 26341), (9247, 22578), (11289, 18494)]