401080988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18341}}^1$

素因数の和:18434

約数の個数: 48

約数和(自身を含む): 887459328

約数和(自身を除く): 486378340

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 994, 1562, 1988, 3124, 5467, 10934, 18341, 21868, 36682, 73364, 128387, 201751, 256774, 403502, 513548, 807004, 1302211, 1412257, 2604422, 2824514, 5208844, 5649028, 9115477, 14324321, 18230954, 28648642, 36461908, 57297284, 100270247, 200540494, 401080988]

約数ペア:

[(1, 401080988), (2, 200540494), (4, 100270247), (7, 57297284), (11, 36461908), (14, 28648642), (22, 18230954), (28, 14324321), (44, 9115477), (71, 5649028), (77, 5208844), (142, 2824514), (154, 2604422), (284, 1412257), (308, 1302211), (497, 807004), (781, 513548), (994, 403502), (1562, 256774), (1988, 201751), (3124, 128387), (5467, 73364), (10934, 36682), (18341, 21868)]