20938492036

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{25357}}^1$

素因数の和:25769

約数の個数: 72

約数和(自身を含む): 46623015936

約数和(自身を除く): 25684523900

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 383, 539, 766, 1078, 1532, 2156, 2681, 4213, 5362, 8426, 10724, 16852, 18767, 25357, 29491, 37534, 50714, 58982, 75068, 101428, 117964, 177499, 206437, 278927, 354998, 412874, 557854, 709996, 825748, 1115708, 1242493, 1952489, 2484986, 3904978, 4969972, 7809956, 9711731, 13667423, 19423462, 27334846, 38846924, 54669692, 67982117, 106829041, 135964234, 213658082, 271928468, 427316164, 475874819, 747803287, 951749638, 1495606574, 1903499276, 2991213148, 5234623009, 10469246018, 20938492036]

約数ペア:

[(1, 20938492036), (2, 10469246018), (4, 5234623009), (7, 2991213148), (11, 1903499276), (14, 1495606574), (22, 951749638), (28, 747803287), (44, 475874819), (49, 427316164), (77, 271928468), (98, 213658082), (154, 135964234), (196, 106829041), (308, 67982117), (383, 54669692), (539, 38846924), (766, 27334846), (1078, 19423462), (1532, 13667423), (2156, 9711731), (2681, 7809956), (4213, 4969972), (5362, 3904978), (8426, 2484986), (10724, 1952489), (16852, 1242493), (18767, 1115708), (25357, 825748), (29491, 709996), (37534, 557854), (50714, 412874), (58982, 354998), (75068, 278927), (101428, 206437), (117964, 177499)]