1640513456

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{11117}}^1$

素因数の和:11549

約数の個数: 40

約数和(自身を含む): 3325260384

約数和(自身を除く): 1684746928

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 401, 802, 1604, 3208, 6416, 9223, 11117, 18446, 22234, 36892, 44468, 73784, 88936, 147568, 177872, 255691, 511382, 1022764, 2045528, 4091056, 4457917, 8915834, 17831668, 35663336, 71326672, 102532091, 205064182, 410128364, 820256728, 1640513456]

約数ペア:

[(1, 1640513456), (2, 820256728), (4, 410128364), (8, 205064182), (16, 102532091), (23, 71326672), (46, 35663336), (92, 17831668), (184, 8915834), (368, 4457917), (401, 4091056), (802, 2045528), (1604, 1022764), (3208, 511382), (6416, 255691), (9223, 177872), (11117, 147568), (18446, 88936), (22234, 73784), (36892, 44468)]