281943440

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{26903}}^1$

素因数の和:27047

約数の個数: 40

約数和(自身を含む): 660547008

約数和(自身を除く): 378603568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 26903, 53806, 107612, 134515, 215224, 269030, 430448, 538060, 1076120, 2152240, 3524293, 7048586, 14097172, 17621465, 28194344, 35242930, 56388688, 70485860, 140971720, 281943440]

約数ペア:

[(1, 281943440), (2, 140971720), (4, 70485860), (5, 56388688), (8, 35242930), (10, 28194344), (16, 17621465), (20, 14097172), (40, 7048586), (80, 3524293), (131, 2152240), (262, 1076120), (524, 538060), (655, 430448), (1048, 269030), (1310, 215224), (2096, 134515), (2620, 107612), (5240, 53806), (10480, 26903)]